When blocking communities, they will not show up in your “all” feed anymore. This makes browsing Lemmy nicer especially now that you might not subscribed to a lot of communities.
In the browser: In you Lemmy instance, click on your username (right upper corner), “Settings” and open the tab “Blocks” and type in the community you would like to block. Here you can also unblock communities
On Jerboa (Android): Open the community you would like to block, click on the 3 dotted menu (right upper corner) and click “Block Community”. Note: you can not unblock on Jerboa. Use the browser (Settings -> Blocks) to unblock.
Is there a roadmap anywhere? I looked at joinlemmy and it’s only showing vague news instead of a clear, concise roadmap. Oh and yeah, blocking instances is critical. Really annoyed with socialist spam.
I don’t know of any formal roadmap for all major upcoming changes/features, no. Sorry!