(2) The first rule of a good OP is "show, don't tell". No-one wants to read you EXPLAIN why he's funny- We just want to SEE HIM being funny (ie video, or screen-grabs of him chimping out/acting rctarded). A early as possible, if you want to keep people's attention.
(3) Lose the 29,843 "view attachments" (none of the three I tried even worked for me. But my PC is fucked, right now; The problem may be on my end?), and if the attachments are worthwhile, just embed those pics/vids.
(4) Trim down to the best, funniest few videos/events (a half-dozen max), and start with those, in a way that you can read it, get the jist, and see the funny, in 5 minutes max. And all the excess, less funny stuff- if it's worth including, at least hide it under a spoiler, rather than have a huge, overwhelming, visually-cluttered OP that takes 17 minutes just to scroll past it.