:::Tried that route several times, and got the usual oblivious certainty from Bgwhite and his pals.  (For the record, I never did  as Bgwhite says I did  tell him to fuck off. He's probably got me confused with someone else pissed off at his wasting their time.) 
 :::Not sure what you think is demonstrated by exhibiting errors I've made. We all make errors, but as I mentioned in a recent edit summary, "there's a difference between an error made in the course of adding to or improving the article, and one made while merely scratching one's obsessive-compulsive itch."  
 :::I agree that denying these bots (notice I didn't list bots that have a history of making only, or mostly, useful changes, such as Anomiebot) is only a partial solution to the problem of automated or semiautomated timewasters, but in an imperfect world it's something at least.  
 :::Experience shows that others watching do not fix bot-induced breakage. But tell you what. If you're volunteering to fix all these things as they happen, I've got no problem omitting the deny for now. Let's see how you do.