Comment by marginalia_nu

I think the big problem is it's a tool you usually reach for so rarely you never quite get the opportunity to really learn it well, so it always remains in that valley of despair where you know you should use it, but it's never intuitive or easy to use.

It's not unique in that regard. 'sed' is Turing complete[1][2], but few people get farther than learning how to do a basic regex substitution.

[1] https://catonmat.net/proof-that-sed-is-turing-complete

[1] And arguably a Turing tarpit.