I'm now pretty sure he's krayvonk. It was a few years ago, so I could be misremembering.
I think they ran a number of accounts, mostly banned. Apart from the recent one(s), such as the OP.
E.g. Capernicus
https://www.eevblog.com/forum/profile/?area=showposts;sa=topics;u=762538They also, seem to be disrupting other thread(s) (ones they didn't start), with apparently nonsensical answers.
if u just want v2-v1, you can just do a raw power subtract.
It reduces the amps and the volts at the same time.
U dont need an opamp for a gain of 1.
I intentionally kept out of that thread, as I didn't want to disrupt it, and would have expected a bad response from robowaffe, if I tried to correct them.
There seems to be talk of a large number of reports on robowaffe, yet I can't see much action, on an apparently disruptive, many times permanently banned, 'member'. So I can't see much point, in making reports about them, via the 'report to moderator' feature.
The disruption they seem to cause, may NOT be their fault (i.e. intentional). But if someone is beginning to be a bit ill (or worse) or taking funny substances, action may still need to be taken.