Since TAR is an uncompressed format, you can view those Ponibooru webpages via: >$ vim <(zcat metadata.tar.gz | head -n5000 | cat -v)
http://ponibooru.org/post/view/11732 had some comments about crazy ponies: >>UserAccount</a><br/>#71402<br/><span title='on May 8, 2011'>1 year ago >>Has Rainbow Dash ever gone crazy? Yes, she almost had a nervous breakdown in "Sonic Rainboom", but that doesn't quite qualify. >Trombe</a><br/>#72027<br/><span title='on May 9, 2011'>1 year ago >I agree with UserAccount above. Having an anxiety-induced nervous breakdown does not equal craziness. And Rarity's breakdowns don't actually make her look particularly crazy either. Just overly dramatic. Applejack <i>also</i> wasn't crazy, just completely incoherent from overworking. And Fluttershy might have had her "time of the month", as Anon above said. So, really, only Pinkie is the genuinely, outstandingly crazy one, the others are just quirky.
BTW, thing I noticed about gateways - if the link is to a folder and it doesn't end in "/" then that may show up as HTTP 404 in some cases. This is a recent change, like sometime in the past 20 days. For example,