When it comes to that stuff, I'd be happy to just get a reply at ALL. Honestly can't tell you how jaded I became after so many rps have been ditched cuz of partners falling off the face of the globe or something.
By that I mean that if I know that they tend to bail quickly on rps or seem flaky or anything like that. If the gm or OP is known for that, I tend to be hesitant about joining given their tendencies