If they weren't doing it, then quality of SO would decrease for all of us.
It's in our interest to have strict mods on SO
(Not to say I like the StackExchange community much. It's far too top-down directed for me. But I'm very much sympathetic to the spirit of strict moderation.)
There are all sorts of community websites around the world. Which have developed into a serious SO contendor? IMO many things are threatening SO’s relevance, but they don’t look anything like it, which suggests that what SO is doing wrong isn’t the small details.
For example, I’d argue that Discord has become the next place for beginners to get answers, but chat rooms are very different from SO. For one thing, the help is better because someone else can spend their brain power to massage your problem. And another is that knowledge dies almost instantly.
