Some good points here, I stand partially corrected.

There are in fact 2 completely separate things that irk me. The biggest is the virtual lynching that is mass-downvoting. I’m sorry, I will never ever pardon the downvoting of opinions, I think it’s the illness of the social internet since the very beginning. See my many other recent comments for evidence of how strongly I feel about this.

The other issue is the actual one at hand! You’re right that this cache folder business does not really concern most ordinary users, even on Ubuntu. But actually, if even we geeks need to tell each other to “remember to do X every now and then”, I have enough of an IT mind to think “Why do we need to remember anything?! The tool should do this job for us!” These are “babysitting” chores and IMO on a decent OS there should be zero babysitting, it should be set up once and then it should work forever, with any tweaking optional.