Am I annoying? Yes

My mind:

why do black people use you in the wrong context? such is "you ugly" instead of "you're ugly" I know u guys can differentiate, it's a nuisance

It’s called copula deletion, or zero copula. Many languages and dialects, including Ancient Greek and Russian, delete the copula (the verb to be) when the context is obvious.

What’s more, it’s been shown that copula deletion occurs in AAVE exactly in those contexts where copula contraction occurs in so-called “Standard American English.” That is, the basic sentence “You are great” can become “You’re great” in SAE and “You great” in AAVE, but “I know who you are” cannot become “I know who you’re” in SAE, and according to reports, neither can you get “I know who you” in AAVE.