Opinions on DNI tags?

Stuff like dni, dniuf, dniup, dnuic, etc...

Do you get a bad impression of people that use these tags? I saw an older thread about them, saying they were really obnoxious , and I don't really get it at all

I sometimes use dni tags when I just don't feel too well to interact , but I still like sitting there & admiring people's ponies & my own silently + the game is just pretty