> Based on the original size of those screenshots, only 18 percent of that forum thread page is content. The other 82 percent is lost to signatures, avatars, UI doohickeys, and other web forum frippery that has somehow become accepted as "the way things are done".
Avatars are a quick and easy way to identify an author - and that in itself carries quite a bit of information. (I'd trust someone I knew to be a mechanic to post valid repair advice, vs. someone who posts all the time about their car breaking because of dumb things they did.)