MyBB Community Forums

As the topic title explains, what is the best plugin/modification to force users to register.
My Community has about 150Guests active in 15 minutes but only 5-6 members.
My community is knowledge share community so i want users to join instead just keep reading and not sharing their content.
Well Well, here are few ideas:
1. A bar about 2inch long in the mid of page floating with scrolls, saying to register.
2. Only 4-5 Threads visible per user.
Please share your fav one, or provide a link to above plugins if u have. I searched but didnt found.
Any Help will be appreciated.

You can't force users to register.

You can force them to leave your site and never come back because it has a huge floating panel hiding everything or they can't view content when they visit without registering.

Relax and create a good forum. Be patient and you won't have to force anything.

1) http://mods.mybb.com/view/floating-guest-notify
2) http://mods.mybb.com/view/max-post-views-guest (Not sure whether it still works, will posts a replacement if i find one).

But i agree wild Wildcard though. You shouldn't force guests to register.