While I sympathize with the issues you are mentioning, they are localized issues. I‘m on !discuss.tchncs.de (I hope I spelled it right). I‘m somewhat of an addict and have 3-4 hrs a day on lemmy (before it was reddit) and I mod communities on both.

Tchncs has not once been down since I joined a month ago. I too cant comment on certain posts but that is a memmy issue, not a lemmy issue (I commented on this and opened a github issue to which I got the reply that the devs are looking into it and might have a fix that should be pushed in the next release or so).

If you‘re seeing tons of nsfw posts I would suggest two things: either change instance since yours seems to be down all the time as well. Second, you might want to change your feed to subscribed once you curated it and only occasionally look into new.

Summary (opinion): Lemmy is not a for profit project and therefore not prioritize maximum polish. Those who code will understand how to make it better (request features and report issues). Those who are not as tech savvy will run into occasional issues which are mostly based on the instance or the client, which is not lemmy.

TL;DR: Lemmy is awesome, most problems are either instance based or client based. Don’t ask for „for-profit-polish“ or you might get it one day. Instead help by coding, hosting, moderating, posting or donating.

Have a good one.