I'm admin at a board, and we have the 30 second rule there too. If we didn't, spammers (often automated ones) could post up to 100 posts/minute, in multiple forums simultaneously. It's horrible! Manual spammers can copy/paste in multiple tabs, and then have however many 'posts' they want within a minute too. While it's a pain in the butt for regular members who are zooming through, making some quick replies, it's definitely a nightmare for a mod or admin who has to delete all the spam. They'd have to first block the IP or IP range to prevent them from posting more still, ban the profile (in the time these two actions are taken, another bunch of spam posts would have been made), then manually delete all the posts by that spammer and then unban the IP range if it was a range, so that regular members don't get caught in the IP range ban. Too much work, and more than a pain in the butt.
The alternative would be to have to manually approve all new members, rather than having easy registration and instant access.
More than anyone needed to know probably, but having a 30 second posting rule makes it easier for a lot of reasons. And thank you Marko for making it a 25 second delay.
