Mudra why so many ninja don't use them?

[Rein_eon_Osborne]

As an avid casual NIN enjoyer, it comes down to muscle memory & proper hotbar setup. I set my Ninjutsu, Ten, Chi, & Jin hotkeys side by side and imagine them as "1 2 3 4". After that I memorize the mudras order as the following:

2 3 1 = Raiton
3 2 1 = Katon
2 4 1 = Hyoton
2 3 4 1 = Suiton
2 4 3 1 = Doton
4 3 2 1 = Huton

Once you remember, you'll never fail any inputs anymore.

[...]I see them using mudras all the time. I saw people dumping doton on single targets so much that I made my search info a PSA telling people not to do that.

I made a term for these ninjas when talking with my friendos in VC: STD Ninjas (Single-target Dotons).