from memory GNU parallel has been advertising on the command line for ages, specifically:
" This helps funding further development; AND IT WON'T COST YOU A CENT. If you pay 10000 EUR you should feel free to use GNU Parallel without citing."
Or words to that effect.
I haven't really been bothered about that, but I could see myself joining a riot if everyone decided that was a good idea. This guy is just bringing that closer.