I've never personally had any issues with the bot, but I've also never really needed to look at the bot either to see what the acronyms meant, but I've appreciated that someone's trying to help if someone didn't know what the acronyms were.
Being said, I do have to agree with what others have stated. It would be nice, if possible, to have it so the definitions link to hyperlinks to persistent pages such as Wikipedia. Even more so on technical style terms like DNS, for example, because that's one of those terms that if someone doesn't know the acronym to it, chances are they don't know the full name to it either.