Exactly my point. Someone who is here to troll has little or no desire to be doing electronics stuff. Most of their participation is in off-topic (and often controversial topics) or new technology stuff (often controversial or damaging to old theories).
And those things are also topics they can post to numerous forums, because they are not specific to electronics. So they can troll multiple forums at once by posting the same pap.
If someone is here primarily to cause a big fuss and mess people up it should become pretty obvious.
There is one here, and it is obvious. In fact, this one fits your description so well, and its appearance coincides so perfectly with this thread, that I wonder if we are being spoofed. I have stopped feeding it, and am going to sit back and watch. Thus far, it hasn't claimed to be a rock star or a double naught spy, but that may be next.