I've never seen anything like the wanton retribution described in that ten year old answer happen here in Space SE or anywhere else for that matter.
The accepted ten year old answer that begins with
Yes. It's encouraged (answering your own question). Accept it if it's the best answer.
and has ten times the votes, so there's that...
Here's an example of an answer written and accepted by the question's author, it didn't flush their reputation down the toilet, despite the topic.
Here's another example of an excellent, thorough, and very well-sourced answer written by a question's author; I'd say it's ripe for acceptance as well.