There seems to have been another round of negative waves, as:-
Coincidentally it seems that one or several people all voted only once for the above answers, within an hour one day. And no comments from that time. This has happened a few times before so I guess that this must be a common occurrence across the site. I know that I write a lot of crap, but notwithstanding, I was under the impression that there were bots in place specifically looking for targeted down voting.
Since entropy is a hobby of mine, I realise that this voting pattern could arise by chance. Even several times. I'm not interested in reviewing those answers, just asking - coincidence/bad answers or no such bot?