I do the same, not because I don't know the priorities, but because in my 35+ years career, I've seen so many times when cut+paste of partial expression leads to disaster just because it wasn't grouped properly with parenthesis..

Early in my career I erased several megabytes of shared memory on a mini computer, ie DOZENS of users worth of memory just because I was being 'clever' and cut+pasted bits of an expression the wrong way.

Since then, as a rule, sod the priorities, parenthesis it is...