This has been a big issue for me even since I was a kid.
I still hate the fact that humans would get offended by criticism. It's too tiring to actually have to find a polite way to voice my opinion. Usually I just keep my opinions to myself because I'm too lazy to have to add, "in my humble opinion", or "for me", or "i don't like", or any other phrase to my sentences just to be polite.
I mean, both "it sucks" and "i don't like it" mean exactly the same thing when understood in the context that it is a subjective opinion, relative to the speaker and can never be used objectively since opinions are relative and unmeasurable.
I hate it that most humans actually take an unmeasurable subjective opinion as something objective.
Why waste time having to add phrases like "in my humble opinion", or "for me", or "i don't like", or any other phrase when it's already a given that opinions are always subjective?
So if opinions are always subjective, why get angry when someone says, "you suck"?
Or, "digital sucks and amps are better"?
Or, "Christianity sucks"?
Or, etc.