That’s been my experience. I remember the first few times I posted on the forum it felt a bit scary or something. Whereas now I feel fine.
I’ve had the same experience with other things. Like I once briefly had a job as a door-to-door salesman and the first time knocking on a strangers door to try sell stuff felt a bit surreal. But I quickly got used to it. I think exposure therapy might be a related phenomenon. Also, I think PUAs recommend similar stuff for anxiety around approaching women.