Looking over the comments, I think mainly you've just experienced some of the highs and lows of getting your question on the Hot Network Questions feed.
That question got put on the HNQ list quite early in its life, if I remember correctly. That of course means there's a link to it on the right of the browser for every user in the StackExchange system. Even if the only reason they are here is because they got stuck in VIM. If the title in the question is particularly clickbaity from the perspective of a person who isn't already a History user it can drive a ton of new traffic into a question.
The plus is that the hordes of new eyeballs got it a motherloade of upvotes and answers (at least by our standards).
The downside is that all these new eyeballs aren't as acquainted with the standards of this site as our regular users, probably weren't brought here by any real interest in History, and a certain % of them are likely to just be flat out numbskulls.
Fortunately, we do have some tools to deal with this.
- Protect the question. This will prevent new users from posting answers. This measure is most effective if its getting a lot of bad answers from new users.
- Move comments to chat. This is a good option for a post where users really want to get a bit chatty, but we'd kind of like to keep the comments attached to the post functional in nature.
- Comment lock. This is a new feature (yay!) that allows us to prevent comments from being added to a post. For when users won't or can't be trusted to refrain from posting comments of marginal or worse utility.
- (Most drastic) Remove the question from the HNQ. This will turn off the tap of numbskulls. It of course also turns off all the positive things that HNQ status was bringing.
Of the options above, I think any highly trusted site user can do 1, but the other steps require a diamond mod, so getting them done requires getting the attention of one of us and convincing us to do so. That can be done via flags, meta (here), or an appropriate chat like The Time Machine or HNQ History. I think as a general rule we should be very sympathetic to any such request from the question owner.
As for this specific instance, correct me if I'm wrong, but I think your main issue is numbskulls in the comments? If so, we could perhaps lock the comments on the question. In fact, it appears that another moderator has already done that.