What is the benchmark for "Viral'?

Most of my stories languish in oblivion, so I will eventually dust them off, retool, and put them anywhere that will have them (that does NOT insist on unpublished pieces only, as Medium does).

Bloviating aside, my most popular piece, by far, is the one with the word ASS in the title. The "lifetime earnings" for it according to Medium is somewhere in the $2.00 range.