TechEval though is absurd.
Well really, it was more or less a few utilities to make using it all via the chat a bit easier. Things like a self-reference, abbreviations of commonly used (findclientbyname/findclientbybl_id -> fcbn/fcbi) and the error/no error thing. That's TechEval, specifically.
Really, at its core, an open eval() can create a lot of fun times. On Slicksilver's server, I did a quick chop-up and made a rocket player - hold jet, every second you get one bar, and when you release jet, you fly in the direction you're looking, even if you were in midair. It's a ton of fun, totals something like 50 lines when expanded, and was originally made via chat eval for a laugh. Sure, it's insecure, so you'd only give it to people you'd trust, and most of us thought Truce was a better person. Turns out he's more of a richard than we thought.