Alright, but of a brief history of me and why I ended up taking a several year hiatus from roleplaying before returning to it by joining a dedicated roleplay site in January 2012.
Back when I started roleplaying in late 2001, it was a Starfox fan board that had a roleplay section that didn't have rules or standards past the site rules, namely keep it PG-13 and be respectful to fellow members. The roleplay forum, being unregulated and without structure, ended up having the various roleplayers playing persistent characters across several games, and you fell into groups of regulars who would join everything together. Games were often long-lived, everybody wrote a few short paragraphs per post, and it was pretty fun and a great introduction to roleplaying.
Then one day, after a lot of the regulars had moved on, all the people I usually RPed with got into "speed posting" and would pump out literally dozens, if not hundreds, of one liner posts a night over the course of several hours. This wasn't working for me, and I had to drop all the games early because even writing a couple paragraphs would have me completely overwhelmed by the amount of posts and ignored because I wasn't keeping up. At the time, I figured all roleplays were kind of like that and I didn't have another community to do it in, so I quit roleplaying and decided to leave the site, it moved on without me and I wasn't happy about my creative outlet getting screwed.
When I picked up roleplaying again, I ended up finding a proper site that had proper structure and writing standard enforcement and I found myself able to write how I was comfortable in doing so. I always wrote in paragraphs, and still do, because there's a lot of stuff to cover in a post, and I really like to sit down and read a particularly well-written post in my games because I get invested in the story and the characters, and with the longer posts it's a lot easier to develop characters and plots, I find. In my games, I have a standard of two paragraph posts minimum, one a week or more, and it's meant for people like me who want a game to keep steady, but also to give everyone a chance to post in a comfortable time frame. It's a lot less stressful than feeling like you have to dedicate your entire evening to sitting on the computer and mashing the refresh button because a few people are going back and forth several times a minute for several hours.
I'm not even going to say sorry for saying it, but standards are there for a reason and it cuts out a lot of unnecessary drama right away by letting prospective players know what's expected of them. It's not about discriminating against other players who can't or don't want to write that much, it's so the people playing can enjoy playing in a game that everyone posts similar quality and lengths. Much like how I wouldn't expect a fast, short poster to accommodate me in playing in their game, the same thing goes for them; two paragraphs are not that much, and while I usually write between 5-7 per post, I let my players know I don't expect that, but encourage them to do it if that's what they want. Speaking from experience, nothing makes a game go bad as when you end up having players of different skill and comfort levels in the same game. If somebody writes a 3 paragraph post and is replied with a one liner, then you're going to have two very unsatisfied players that obviously aren't compatible.