On the web interface there is a block community button on the sidebar. This functionality is currently missing and I think will be important for newcomers who are using All to discover content. Similarly a subscribe from the feed could also help people build or rebuild a list of communities.
Second that. I’m seeing a couple in the All sort that I’d really like to block, but I can’t unless I’m on the site.
Like what, out of curiosity?
Hentai for example. Not shaming people into that, but i dont care for it.