So, I think you are over-generalizing from a particular piece of anecdotal evidence.
You, yourself, have spent a lot of time online and been exposed to a lot of nasty behavior, and you don't find that a lot of rude comments bother you.
From this, you conclude that those years "desensitized" you.
Other equally valid hypotheses are that you were less sensitive to such comments in the first place; the reason you hung around, and kept on interacting in the kind of places that make such rude comments, while other people may have just spent time with their meatspace friends, is that you were less sensitive than some other people who saw nasty comments, got bothered by them, and stopped hanging out in such forums.
Or another ones is that those comments you say you are desensitized to are just things that you don't care about that much. OK, so some anon was rude to you about a throwaway comment on an imageboard. Big deal. But you might react differently when people in a community you trust or which might be influential, and which you want to value your work, actually say negative things about something that you have put a lot of your life into, but have had doubts about whether it's really the right thing for you to be doing.
The list goes on. There are a lot of possible conclusions that can be drawn from "spent a lot of time on the internet and exposed to online abuse in youth, now finds self not particularly sensitive to online rudeness." Taking from that that some people might take offense at things because they haven't had such experiences is a big leap.
You, yourself, have spent a lot of time online and been exposed to a lot of nasty behavior, and you don't find that a lot of rude comments bother you.
From this, you conclude that those years "desensitized" you.
Other equally valid hypotheses are that you were less sensitive to such comments in the first place; the reason you hung around, and kept on interacting in the kind of places that make such rude comments, while other people may have just spent time with their meatspace friends, is that you were less sensitive than some other people who saw nasty comments, got bothered by them, and stopped hanging out in such forums.
Or another ones is that those comments you say you are desensitized to are just things that you don't care about that much. OK, so some anon was rude to you about a throwaway comment on an imageboard. Big deal. But you might react differently when people in a community you trust or which might be influential, and which you want to value your work, actually say negative things about something that you have put a lot of your life into, but have had doubts about whether it's really the right thing for you to be doing.
The list goes on. There are a lot of possible conclusions that can be drawn from "spent a lot of time on the internet and exposed to online abuse in youth, now finds self not particularly sensitive to online rudeness." Taking from that that some people might take offense at things because they haven't had such experiences is a big leap.