Community creation limit?

It seems that community creation is just around the corner and from what I've read it seems that initially the number of them that we will be able to create will be limited to avoid individual users taking over too much "territory" which is understandable.

Said limit, from what I've gathered, seems likely to be between 2-3 communities which I think is a reasonable amount. Personally, I believe three would be the most ideal choice as it still is a fairly small number while still allowing users to create a reasonable amount of communities without feeling so restrictive, three just feels like a good balance.

What do you guys think?