It isn't our job to dictate to people how to maintain a base standard of human decency toward one another, and we're not going to do so.
The bottom line is that it's down to members of the community to know where the line crosses from common decency to harassment. We will not draw a line in the sand so that people can skirt on the edge of it and bend the rules as much as possible.
This isn't a debate about what constitutes "harassment". If you're not familiar with the word, find the definition in a dictionary and that will satisfy your question.