[@Ashevelendar] I'll play devils advocate. I'll start by clarifying my stance on the matter: in an RP where you are roleplaying as a tight knit group, then yes, read everything. The group is so tight knit (and likely .. small) that you can realistically read everything and realistically expect to need that information, indirectly, at some point.

It also helps you come up with interesting things to say, without metagaming, i.e. if two characters talk about how much they hate being ignored, it could give you as a writer, OOC, a clue to ignore the characters to create friction. For example.

But in larger groups, which I have historically been part of, that number over 15 people in various different 'teams' of sorts, yeah, fuck that. There's gonna be characters that my characters will never interact with, there's gonna be characters I simply don't give a fuck about, so I'm not gonna read all posts. But those roleplays are [i]rare[/i]. And it typically requires there to be an OOC understanding that most members of different teams won't meet and certainly won't be close enough for a singular conversation to make an impact regardless. 

But that's a rare situation. Most roleplays are tight knit groups, most roleplays focus on friends or at least people that are together often. Ignoring posts because you don't feel like reading them is a bad idea. You can do it. I don't care - if you are in my RP, don't read the posts, but still come up with coherent posts that make sense, who am I to tell you how to RP? But the problem there is that when you don't read, things often don't make sense, and perhaps a single conversation two characters have seems unimportant, but what if it's about something more than that? Maybe they're talking about your character? IDK, I'd like to read that, because it involves me even indirectly and that's part of the fun for me about roleplaying.

But yeah, long and short of it is that as long as you can post, and have it be interesting and cohesive, while making sense, I don't care what you do.