Why can't you speedrun with the crack? If everyone agrees on a common executable that works it can be verified via SHA256 and still be used for speedruns.
That doesn't seem like a high bar honestly. There's many games that much harder to get started with, you might need to buy an old console or buy a specific version of a game. Downloading and installing a cracked game should be easy.
just in guide mention it as a community patch :)
If you're going to do that, at least send it to a security company to test for malware... or you could end up in deep trouble if unlucky?
Someone that is dedicated enough to potentially start speedrunning some 10 year old game, shouldn't really be stopped by having to install some extra "patch".