It's probably because most people only read and vote.

Def groupthink and PugJesus haters

There's a key difference. A subscribed member of the community has the right to downvote poor quality content, whereas drive-by downvoting via All is something else altogether.

I have not seen the content that OP downvoted, so I have no idea how poor-quality it might be. But why would that even matter? The mod defended the community from someone who, by OP's own admission, is neither a subscribed member nor someone who has ever contributed beyond, and again this is OP's very own wording in this post, "mass downvoting".

"mass downvoting" is a form of vote manipulation.

Let's even take for granted that OP did it entirely in good faith, thinking they were helping the Threadiverse. Okay then, but in that case why bother being salty about being banned, from a community they claimed to have no interest in contributing to?

It seems to me a case of play games, win prizes. Yeah OP can mass downvote, and yeah the mod can ban them as a result. And now we've all had this conversation about it.

Maximum friendliness would have been for OP to simply block the community, or perhaps the poster to it, and then not have to worry about seeing that low-quality content anymore. Instead, they seem to want the right to continue to downvote it despite not ever wanting to post or comment. But I am siding with the mod in this case that I might well ban someone for the same reason, if the only "contributions" they ever made were drive-by downvotes like that.

So now OP is banned, so they don't have to worry anymore about it, problem solved. In the future though, I did recommend blocking rather than mass-downvoting all posts in a community that they are NOT a member of.

I don't like sports content. Therefore I blocked all sports communities.

I don't live in the UK, or in Australia, or Canada, etc. Therefore I blocked all communities for individual specific places within those countries - London, Ontario, etc.

The difference is - and remember you asked us, we didn't just start DMing you out of nowhere - that I do not begrudge the very existence of those communities. If someone ELSE wants to discuss sports, then I believe that they should be free to do so. If someone ELSE lives in London, then same.

Maybe I misunderstood and you were trying to state that the content that you downvoted was not merely irrelevant to you personally, but objectively bad? If so, it might have helped to have included links to some good examples, if you want help from this community to obtain an external judgement check on that determination. The vast majority of people here cannot see what content you recently downvoted - and even you might not fully recall, since 5-12 is quite a range that leaves a lot in doubt.

But even if all that content was objectively bad, why be salty about being banned from a community that you claim to have no interest in seeing?

What it LOOKS like - and I could be wrong but again, I am not DMing you out of nowhere, you ASKED for people's opinions in this post - is that you would prefer that you be allowed to continue to shit on other people's content, and in a manner that overrides the consent of the members of that community (proffered via the mod acting on their behalf) to be so shit upon. Think about it. If I am not entirely correct then what I am saying still has a point to it nonetheless. Or if you would rather, block me. You do have all the power here, decide how you want to wield it.

Much much much higher than that.

bc OP indicated that, saying "my frontpage" (emphasis added).