I'll be honest with you guys. A few months ago I conceived of the idea of "MV" as an acronym on my own before discovering it was already being used and registered by early bird domainers. I regged about 20 MV names 3 months ago, including Glasses, Avatar, P*rno, Earth, blockchain and others. I am probably the first domainer to dive into this sub-niche the way I did, but
@xr reality regged an MV domain (MVS*x dot com) way back in 2017. There are also even older registrations going back to 2014, and there are conversations archived online referring to the Metaverse as "MV" going as far back as the mid 2000s. There are more individuals using the term MV than there are companies, like 18 out of 20 (very rough estimate based on my previous research some months ago) but I have seen a nano sized handful professionals and projects use the term MV.
I think the term could catch on, but how likely is uncertain. One thing is for sure, Metaverse is a long word, so it would make sense to use MV, but length never got in the way of the success of Blockchain as a branding and marketing term. There were maybe 4 or 5 companies referring to it as "BC", but that acronym never caught on. So don't hold your breath for MV to be a bread winner. It's very plausible that it will not. Until we find out, I'm holding on to a few....let's see how it goes...
To the future