How do you get rid of stalkers who harrass you online when t

How do you get rid of stalkers who harrass you online when they dont contact you directly but you know its them?

Are you talking about on this site or somewhere else online? How are they contacting you? Maybe that will help people give you suggestions.

Let's just assume its everywhere and anywhere online. They post stuff either in reply to yours or immediately after yours using a persona that's a parody of you.

I ignore, block or report them.