I have not used anti-skate since I got my vpi classic 2 with the JWM-10.5. I did use it on pro-ject table with a 9 inch tonearm. If you need it, use it.
Tonearms with no anti-skate adjustment
I am in recent possession of a Grace 704 uni-pivot tonearm, which has no anti-skate adjustment. This is not optimal IMO, but should I really be worried?