It’s a bit redundant since the O stands for “Optimization”, but it means Search Engine Optimization. Basically structure your stuff so it shows up in more searches (use popular terms in your profile, make posts with key phrases, fill out all the fields).

I’d say all of the ones I’ve bothered to try work? Some of them have annoyingly low pressure, where I’m almost kissing the spigot, but none have been undrinkable.

It’s a little strange that you think “I want feature parity with what’s working for me (from my perspective)” is:

1. A lie.
2. Unreasonable to ask for.

The healthy responses would be “Well, I hope either support grows or your needs change, because of some philosophical reasons you might not care about… yet” or, if they’re open to it “Oh, it can do this if you put a little work in, let me help you.”

The unhealthy response is to accuse people of moving goalposts as if someone’s tool of choice is a political debate. It can be, obviously, given FOSS philosophies, but honestly this kind of screed just drives people away.