I grew up in the world of BBS's and IRC.
First foray into a chat channel started with someone renaming themselves "34yrDude changes name to 15yrChick"
...and that set the tone for me what the internet is.
It's a entire world where you make absolutely zero assumptions. The 'things' responding in text could be anything. And I say thing instead of people because these days it may not even a person.
There's an entity that responds to my comments, and perhaps seemingly hurtful,
it could be some 10yr old kid who doesn't fully understand,
it could be could be some mentally challenged person,
it could be someone's crazy grandma,
and now it could be some bot that while not purposefully built to be malicious, through emergent behavior is trolling and insulting people because it gets a rise out of people that results in more and longer comments, which tickles its feedback loop to do more of the same.
So nah, there's nothing anyone in the vast internet could type out that I would personally hurt my feelings, because I make no assumptions as to where the comment is coming from, and those comments don't have a lot of weight to me.