Okay, so small change has processed on the site’s end - you still only get one AI character, but now you can directly delete the one you have (permanently) and make a new one to replace it. Clearly this is still in EARLY development, but at least they’re making progress. For the record, I would not recommend doing this unless you made the mistake I did and made a very closed-scenario RP as your first character. It takes a LOT of directed editing to get the AI to respond like how you’re wanting them from the baseline, so restarting from scratch is a drag.
Regarding the trojan itchio thing, there was a thread on it last year - and via reviewing it, it appears that they weren’t posted but instead directly sent to people via Discord. You should always review programs before downloading/running them as a general precaution, though, because you never know when someone’s itch account might get compromised and a malware-loaded “update” uploaded. From the responses there, of course, it does appear that the mods/admins here keep a close eye on reports of bad links/trojans and questionable posts are removed.