SableWyvern
Cruel Despot
I agree. However, it's completely beside the point.Again, that's just not true. If you learned to drive a semi, you absolutely would be a better driver.
Having broader experience makes people better at anything. That's just true. Doesn't matter what it is. Broader experience is how everyone gets better at anything.
The real point is, there is no good reason for @AlViking to be put in a position where they need to defend their decision in the first place. Sure, playing other games B, C and D might make them better at playing game A by some measurable amount. But that doesn't mean that the degree to which doing this ends up increasing their overall enjoyment of the hobby will be any higher than if they just kept playing game A. It doesn't mean that the degree to which their skill at game A increases by playing B, C and D will be higher than the degree to which their skill will increase by just continuing to play A. It doesn't mean that they even consider, "skill at engaging in this leisure activity" to be important to them at all, or more important than a range of other factors.
The whole line of argument is a strawman and it goes back to another way of putting down people who don't play their games they way others want them to. "Hur hur, ignorant self-saboteur, you only think you're having real fun! By sticking to your one game, you lack important skills that the rest of us develop and your games are worse as a result."