You can get professional software and support for free, until you can’t. This “you’ve provided me free support once, so it’s your obligation to support me for free indefinitely whenever I ask” attitude has certainly contributed to my open source exhaustion as a maintainer.

Well, good luck getting a company you paid for a product to provide indefinite support, large professional software companies cancel projects and EOL software all the time.

You only have a right to complain about the amateur bullshit you paid for, though.

You have a right to complain about anything and everything.

For instance, I don't pay a penny for HN but I can complain that these discussions sometimes become self-congratulatory prattle where angry people carrying a giant chip on their shoulder posit absurd, completely ridiculous notions and they're supported in their group delusion by like-minded parrots. You don't have to agree with my complaint, but nor do I need your or anyone else's permission to hold it.

My Ethernet is stuck in ipv6, professionally tell me how to fix it, for free.

That's not an open source project any of us maintain.

Also, there are expectations for both sides of a professional interaction. My employer buys various fancy networking equipment for lots of money and we absolutely wouldn't expect an answer for that question.

Sure, could you provide some more detail?

I actually did that for years in a linux forum.