And if people think the 12-hour rule isn't a factor in driving down subscriptions I have a unicorn for sale....
We had 12h rule for many many years with player numbers going up steadily...
Of course there's the odd player cancelling the sub "because of the 12h limit", but the true reasons are often going further than that, and things are most often more complex than this.
There's a general tendendcy to blame one's own pet peeve for a general decline in numebrs, gameplay or whatever. Arena split, arena de-split, GV control change, perk system, icon settings...
Most of these claims are based on nothing more that just a personal issue with a particular setting/change, which is then overly generalised projected upon the whole population.