Excerpt from question:
Ive been tried many times to find where i can buy xbox subscription for 12 month with bitcoin or paypal.
He's not asking if Blizzard accepts bitcoins as payment, but for a list of places that do accept Bitcoins as payments, and also sells WoW subscriptions. That's a "Where to buy" question, which is a question type we don't allow on the site.
aytimothy gives the reason that this is about "pay money online" so i want to know if it would be off-topic if i ask i.e. if Riot (League of Legends) supports Bitcoins to buy skins.
This isn't really relevant to the the reason the question is off-topic, since your hypothetical question wouldn't be "where to buy", which is why the question is off-topic.
What about all those free to play games out there, i'm not allowed to ask several questions about the pay model?
There's no way I can make a general sweeping statement about this. Some questions like this will be allowed, and some won't.
With regards to this comment:
I'm voting to close this question as off-topic because it's about ways to pay money online.
I wouldn't worry too much about it, since it really has nothing to do with why the question is off-topic (tbh I'm not even completely sure what he means). It's possible the user voted voted for off-topic with the wrong reasoning, but the question is off-topic, and without him clarifying what he meant then it's not really possible to address the correctness of his reasoning.
EDIT: Just realized that aytimothy seems to view the question more about how to use bitcoin, as opposed to asking which sites accept Bitcoin as payment which also sell WoW subscriptions. A question asking how to use Bitcoin is off-topic for the site, since it's not a Gaming question, it's a Bitcoin question. How to convert Bitcoin to cash, or how to use Bitcoin on sites which don't accept it, is very squarely outside our realm.