SIGTERM: Dear process. Please stop doing what you're doing now, tidy everything up and just stop after that.
SIGKILL: I'm not asking you anything, I'm not even talking to you anymore. I don't care you leave crap everywhere or lose data integrity. System, shoot this fucker!
The ASF has renamed their conferences from ApacheCon to Community over Code, so foundation leadership seems receptive to moving away from the Apache name.
I honestly wouldn't be surprised if the name is changed in the next couple of years.
The name was originally just a silly joke, since it was "a patchy web server" (as it was an open source web server abandoned by the original author, but kept going by a community sharing patches to fix bugs and add features).