I know they surround the spawners and get removed by "victory poling" and the general information behind it.
But do they disappear if I destroy a base and there aren't any bases nearby?
This is my current base
My Base
And I've started victory poling around the place but I'm getting quite sick of it. There are absolutely no spawners/worms/biters/spitters etc in the area (4096^2)The other question is, what are those square blocks with no circles near? I can't seem to find out why they do that.