[Phalynx]

Originally Posted by buileminh

1. I think set the values to 0 will disable point system. What I want is keep the point system to give points for users when they do activities in my forums and when they have certain point, they can use their points to purchase Paid Subscriptions. Can users purchase Paid Subscriptions using their points in your current version?

I don't understand. You want to disable all other than activity, but here you are telling me you need it. You cannot disable more, as there is no more which can be disabled.
Please tell me what exactly you will need to disable.

Originally Posted by buileminh

2. I will have 5k-30K members, 100-300 members online at the same time. Will it be heavy?

Depends on your machine. You will have to try it out, read also the readme about optimization on heavy sites.