Well, I tried to play the game and join in (hence my 10,100 points) but this forum is almost totally useless for anyone doing experimental physics. I particularly dislike the snobbish attitude of some moderators who cannot tell the difference between experimental physics and that stinking low class "engineering" stuff.
Last straw as my question on laser-metal interactions being put on hold and not re-opened. After much googling (in scholar) and elsewhere I discovered the answer I sought. And guess what - it's physics. Clue - plasma frequency v wavelength of light.
The output I get from here is vastly less than the time I have put in, and I have a paying job being a real physicist (and engineer - but let's not mention that)
So, I am unsubbing and won't be back.