So [X] it's [opposite of X]

In a non-searchable and potentially ephemeral comment to the original posting, Professor Lawler kindly presented the following answer:

Notice they all use the same construction? Something like:

           so X that Opp(X)

It’s an idiomatic construction, of which there are thousands in English. And there isn’t a special Greek name for this one; the Greeks weren’t talking about English.

I’ve marked this posting Community Wiki because it is John’s answer not my own, and so I deserve no reputation from it.

Phrases that follow the template of a popular saying like “so bad it’s good” are called snowclones. The term comes from “Eskimos have X words for snow,” another very popular snowclone.