I've had a number of newbies appear to target me with negative posts here. I just block straight away, problem resolved!
Some people still have that 'hangover' need from the bird where they feel attacking people (usually with creepy politeness)is the thing to do. It's not here.
Don't be a jerk is a good rule to follow.
But PLEASE don't put up with it, if it bothers you, just block or mute. Or report obviously if it's actually abusive.
xx