Eh, I chose this instance because it was one of the top 5 or so, not because of the name. I would probably hesitate to share a link from this instance, but honestly, I don't do that anyway, I generally just share links to actual articles linked here.

So for me, it's really a non-issue. I have much larger concerns about how Lemmy works in general than naming of any one site, such as the one mentioned in the OP (no indication from domain name that it's a Lemmy instance, one instance lagging on updates can break when viewed from other instances, etc). So to me, it's going to stay niche because the user experience kind of sucks.