- To cede that some tankies are like this? None
- To cede that this is representative of tankie culture? Quite a few, plus evidence that it's not an inside joke or satire
- To cede that this is representative of communist culture? Same as the above, but more.
- To cede that this is representative of leftie culture? I'd have a difficult time believing it wouldn't be buried by counter examples.
Let's start with, let's say 5 posts from prominent communist communities that: a) are clearly mainly about this, b) are clearly not a joke, and c) clearly have broad support from within the community.
Those examples will give me a starting place to look around myself.