Lufthansa also asked me once to bid on an upgrade of my seat, I could set an amount of money and the higher I went the more likely I got the upgrade. Haven't seen it since then though, been a year I think.
They have a new lowest economy tier as well, where you don't even get a carry-on bag anymore, just the personal item which has a size of a small-ish backpack. Who travels like that?
They also now ask you if you'd like to book their "green fare" after you've selected a ticket, which is obviously even more outrageously expensive.
I know all this because I live outside my home country and have to go back to visit family 2-3 times a year. Lufthansa is the only direct flight from where I live and so far had been cheaper than any other discounters (which also always added travel time and stopovers). This is the first year where they got so shitty I am considering taking another airline after all.