Ask HN: What are the best communities/blogs for hackers?

I don't feel like there are many friendly places on the internet, where people are helping each other and beginners (or even not-to-smart people) can talk.

Maybe forums for specific software?

Now that I think about it, the fitness related reddit subs are kinda friendly comparing to technical ones.

hackaday is pretty interesting for general purposes

I think individual topic subreddits are valuable too, but their quality varies depending upon popularity and moderation (a lack of both, usually)