OK, maybe I did not use the right word. Maybe “crippled” should be changed to “limited” or the like. That’s what you get when dealing with non-English people like me :-)
My problem with find (I did not investigate grep, as the workaround I used was rather evident) is that it is lacking the “-printf” option, which allows to choose what properties of the entries found to display. I use this option a lot, and I miss it. But then, TinyCore has the “findutils” extension for people like me.
Have a good day!
[edit: I should add that I tend to be cautious since I regularly work with Unix shell like old SunOS, which are a real pain to work with, except when GNU tools are installed.]