[dundarious]

> It's really weird seeing letter ё in English language title.

It’s not, for the varied reasons I gave. I know that this is yet another variant. I agree there is a problem with it in that its meaning is not well-known (so you may want to use more well-known alternatives), but not that the diacritic itself is “weird” or foreign to English language users.

[pessimizer]

It's weird because it doesn't make sense, not because it's a diacritic.