As far as I'm concerned, although people like RolfAndreasson exist, they should in no way be included in the model of 'average person'. Seething rage at a mere unsolicited introduction is totally un-ordinary and arguably self-destructive behaviour, and I have no compunction about saying that RA definitely needs to recalibrate his own response, not you.
My impression of your introductory thing is that it's overly involved, maybe slightly overbearing. You don't need to justify yourself, just introduce yourself. A general rule that I've found reliable for social situations is "Don't explain things if explanations haven't been requested (unless you happen to really enjoy explaining this thing)"; it stops me from coming across as (or feeling) desperate and lets people take responsibility for their own potential discomfort.
Don't err on the side of not doing it. People are already encouraged to be way too self-involved, isolated, and "individualistic". Doing things together is good, especially if they challenge you both (whether that's by temporary discomfort, new concepts, or whatever). If they don't want to be involved let them take responsibility for communicating that, because it is their responsibility.
You are clearly an extrovert, and that's fine, but please refrain from speaking as if introverts are inherently inferior and incorrect. It's incredibly annoying and insulting.
Also, you say
People are already encouraged to be way too self-involved, isolated, and "individualistic".
And then you say
...Doing things together is good, especially if they challenge you both (whether that's by temporary discomfort, new concepts, or whatever). If they don't want to be involved let them take responsibility for communicating that, because it is their respon
r/Fitness does a weekly "Moronic Monday", a judgment-free thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. I thought this seemed like a useful thing to have here - after all, the concepts discussed on LessWrong are probably at least a little harder to grasp than those of weightlifting. Plus, I have a few stupid questions of my own, so it doesn't seem unreasonable that other people might as well.