You shouldn't name the move after yourself, but people will often name a move after the person who made the move popular.
For instance, the Dead Orchard predates Nathan Orchard's jiu-jitsu career but he is the one who made it popular by repeatedly destroying people in competitions with it.
That having been said, technique names only stick if there isn't already a technique that is related or similar. Also, a technique should fit into a system of nomenclature (the name should make sense relative to other technique names).
Show the Art recently released a video with Nathan Orchard doing an Imanari Roll to a Knee Bar. Nathan had dubbed that technique the Rolling Honey Hole, which fits the 10th Planet system of nomenclature pretty well (ala Rolling Kimura) but its probably now best known what is was called in the video - an Imanari roll. That technique actually came to us from Garry Tonon, whom I believe described it as similar but not the same as an Imanari roll. Tonon offered no name, so the technique was nameless when Nathan picked it up.
Of course, in this case, the Swiss Teepee isn't popular yet but I think it is an extremely solid choke and I've shown it to a lot of people over the last year. A lot of people commented that it looked like a Teepee, so naming it the Swiss Teepee in deference to Stefan made sense.