The people who want to gripe about disappearing fares can do so in any number of other fora, with the most obvious one being Mileage Run Discussion. Off-topic posts can be dealt with.

The wickedly low premium mistake fares are going to get their own threads anyway.

There is some merit in having a low-key thread noting some good deal premium fares that aren't mistakes, and aren't good mileage run candidates in the traditional sense. Even the good deal premium fares are out of reach for most people.

If each good price gets its own fare, would that not lead to more of the fares being reexamined by the airlines?