[atoav]

So its a minimalist stop motion avatar using a specific image file format (for its ability to embed an alpha channel aka transparency I guess).

I prefer minimalist stop motion avatar to "PNG-Tuber" which sounds more like a slang description of the person that relias on said avatar variant.

Also avatars in early games were exactly that simple, so that name was here before.

[TazeTSchnitzel]

It is wise to show at least a little deference to the field a term comes from. If you are not already deeply familiar with the subject matter, it is going to be hard to appreciate why particular names have caught on and why your own ideas might not be better. Immediate comprehensibility by outsiders with no prior familiarity is usually not the most important criterion.

[starkparker]

> If you are not already deeply familiar with the subject matter, it is going to be hard to appreciate why particular names have caught on

and if you're introducing a niche term to a broader audience who might lack that context, in an asynchronous or static medium like an HN post or repo README, providing a definition that describes it in more widely used terms is a low-effort way to help unfamiliar people learn about it without forcing them to ask

[DidYaWipe]

Forcing people to ask or expecting them to perform a Web search for the meaningless jargon in your title is a cornerstone of HN posting.

As is complaining and "flagging" when someone calls it out.

[mubou]

> which sounds more like a slang description of the person

Pretty sure that's the intent, since it's a play on the name "vtuber", which is used as you describe.