I think you've misunderstood my point. I'm speaking of over-planning, where every little detail, including dialogue and reaction is listed out for every post. To be able to predict what's going to happen before you even read it makes reading, not just roleplaying, stale because you're reading things twice. Yes, it may be fleshed out in detail and different words are used to construct the post, but in the end, it's still the same outcome.I went through this thread a bit, and there were some points I felt the need to play defense for, moreso in respect for the dignity of those, like myself, who sometimes incurr in some of these pet peeves. I just want to clarify that I'm not trying argue here, your pet peeves are your own personal matter and you are free to have them. What annoys someone isn't always a logical calculated response, sometimes things just irk you. So all I want to say here is not "you should not have this or that pet peeve" but rather "this is why some people feel it is legitimate to do this" or clarifying a couple of misconceptions about the specific topics.
Hmm... I mean, you are of course entitled to your own opinion in the matter, but I do feel relevant pointing out that the few people I know who roleplay in first person generally don't demand their partner do the same, myself included. Again if you have a problem with first person, that's your right and your own business, but I did want to clarify that nobody's telling you to change into first person (that I'm aware of), some people just like playing from that POV.
Obviously I can't speak for everyone but I format because I like to format and look at the format. Sometimes I like it because I had an idea I thought was cool or because I thought I could create atmosphere or make something thematically interesting. There have even been times when I've hidden info about the character on the formatting symbolically. And there are times when I just did because I thought it looked nice and I wanted to make my posts look nice like that. There is nothing wrong with simple posts and I do use them just as much, but other than terrible generally unreadable formatting I don't think there is anything wrong with formatting posts either, and don't think it's right to write them all off as something as petty as "show offs".
Of course, regardless of that, your pet peeves are your own and as I will get to in a bit I do have my own pet peeves and not all of them are really fair.
I thought I might adress this topic with this quote, because it is an interesting aspect that often comes up when I talk about planning and structure. While I couldn't possibly name every reason why, here are a few:
1. A book does not have the interaction of discussing with the other person or engaging with their ideas and views
2. A book will not necessarily have someone to read it
3. A book's story tends to be less personal and less immersive for the author because they are not participating with their character, they are writing the whole thing and the character is just another face in the crowd of what they are writing.
For reasons like these, the writing and sharing of a book is not equivalent to full-planning writing. I would also like to express (though, yes, you already kinda pointed it out) but the idea that twists and turns and the unexpected are a fundamental part of roleplaying is common but not universal. Even the idea that they are a good thing necessarily is not universally accepted. There are people who are more interested in seeing a scene being fleshed out and in the quality of the writing rather than the surprise of the writing. People who appreciate atmosphere and seeing the puzzle pieces being beautifully put together rather than travelling a journey of unknown destination.
One could view this as a well-written mystery book. If a mystery book can only hook you because you didn't know the culprit then in the eyes of many, myself included, you might as well buy one of those boxes that come with random junk. A good mystery novel will be enhanced by knowing how it goes, and to those like myself so is a story you write yourself, be it a book or a roleplay.
Still, if you don't enjoy it or are even irked about it, like I've said plenty of times here, that's fine. You do you. Just wanted to shed a little light onto the thought process of people who do want to plan. That said, if someone tries to impose a plan you didn't agree to or want to work out onto you, then that's still an assholish thing to do.
I'm not against planning in any sort of way. In fact, I encourage it in all my roleplays.
As for the books part, I'll have to politely refute. I've found a good deal of books which engage readers and flesh out character in such detail that it's practically roleplay, except with one's self. One example is Rick Riodan's Olympian series where he jumps from POV to POV, similarly and comparable to a roleplay where different character's perspectives are put into play. The only difference is that it's still one writer, but due to the character shift, there's a different air to how each character acts and reacts.
Regarding interaction, there are many books such as "Choose Your Own Adventure" books which allow readers to interact with the author. And like books, not all roleplays are necessarily read as well. In fact, the statistic of someone reading a roleplay is comparatively lower to one reading a book.
That's just my two cents and to clarify any misunderstanding regarding my personal pet peeve.