I see it used randomly on all kinds of posts.

Personally I think we should use it on sites that are trying to profit from disinformation, such as incorrectly reporting male rape as unwanted sexual attention, and sites that just post feminist garbage that perpetuates false ideas and information.

But I don't think it should be used for articles that highlight inequality. I often see a good piece highlighting some of the issues men face and it has been linked via the archive so the author doesn't get any advertising money.

Also I would suggest maybe adding it to the guidelines for submitting a URL saying consider using archive.is if your post is antagonistic or perpetuating falsehood about mens rights.