Apparently, some moderators feel that they have a *duty* to delete long comment threads, *no matter what*. That once the thread is automatically flagged for being unusually active, *it is an indisputable order to delete the comments*.

The moderator in question even said the following in defense of his actions:

> 
> I scanned it, and while there was a good amount of relevant information, the comments section is not the place to put relevant information.
> 
> 
> 

What... the... heck?

If there is "a good amount of relevant information", then that should *not* be deleted outright. Especially not with a mere 9 minutes warning given, which gave the participants of the discussion no chance whatsoever to incorporate this "relevant information" into an answer.

[The meta thread discussing the deletion, and the answer given by the moderator in question](https://meta.stackexchange.com/a/119000/33213).