and here's what Jesse has to say generally about "web words":

We wouldn't put [one] in using only Web citations, but anything that has a reasonable currency on the Web will also be found in more traditional print sources, including _to google._ In certain circumstances we can cite certain sources from the Web, if it's necessary to establish usage, but we prefer not to.

in other words, things haven't changed significantly from the "can it be found widely in print" test.