The main problem I have, in common with many others I suspect, is that I have no idea which password I used on SHC. I registered 5 years ago. The password has largely been cached in browsers since then. Like many people, I have a limited numbers of passwords that I use for Internets stuff, mainly because every fucking site on the Internet wants you to register. I already retain ~50 passwords and PINs for work and other important things, I don't need or want or have the capacity to have to remember passwords for every forum I might want to shitpost on as well.
Anyway, I developed a new method for generating strong, unique yet memorable passwords a while back. This debacle gave me a great excuse to change a bunch of passwords to use this method. Yay?
While SHC was mainly shit, and dominated by a core of uninspired people endlessly repeating 4chan memes at each other, it did have some good points too. It was the de facto alternative to the terrible Eve-O forums and filled that void left by the sudden demise of the EVE-I forums (hands up who remembers those?). Eve really does need a set of general forums (as opposed to the more specialised places like Backstage for example) as an alternative to the official ones, imo. On that basis, it's a shame to see SHC go.