all the old posts are still there man. i spent weeks importing everything making sure not a single post got missed. I even put a backup of the site up just in case, and its still there: legacy.glitchhopforum.com
if you find a post there that isn't here i will give you $5 of bitcoin
As for your login, yeah some people had issues i think the passwords didn't import properly for some people. you should be able to use your previous accounts email to reset the password. if you can't just send me a PM and i'll gladly fix it for you bro.
just noticed that legacy.glitchhopforum.com broke. gonna fix that right now.