dude, its quite simple, all new members must post 10 times, then the site will allow them access to downloading and uploading on the exchange, and possibly something to do with high tide on the east cost(i dunno about that one, see oscar the great).
it's to stop new members from posting one reply saying "hello, i am from the north coast, i like rollercoasters." then leaving the forum FOREVER and posting little nooblet coasters over and over again, the exchange is jam packed full of bumpy, crappy, uninspired rollercoasters made by idiots who have but one post and then never even press that forum button ever again. like i said, its to combat n00bs. stop bitching and listen to oscar.
oh and we got annoyed with you, so now your post count is minus nine, you have nineteen posts to go, it wont be THAT hard! make yourself at home!
(oh and double or more posts are frowned upon and will get you bannededededed. so don't double post, post on relevant topics, make yourself some friends, then ask them what you think of your coaster before you upload it, so let them test it, therefore you wont make crappy coasters, everyone here will like you a lot more and there will be 500 less bumpy peices of cr*p). detailed enough?
edit: oh and one more thing, you CAN delete your own posts, if you don't like what was written, delete it(i think you can anyway)
Cradled by two loving arms that I'd die for,
One little kiss and Felina goodbye.