Usually if something isn't working it becomes a bottleneck so a lot gets built up behind it. Once the 'dam breaks' so to speak you're playing catch up plus you probably don't want to think about the problem anymore. This is also a reason things don't get documented.

Me too but I only ever do this unintentionally, and it usually corresponds with a delay in the reply from support coming back to me. (Ie I’m now focused on other things or have solved the problem a different way).

Whenever I’m conscious enough of it I do try to thank people - trying to remember how hard it must be on the other end!