I have recently experienced that members or potential members are not allowed to join my forum. They still get the confirmation email but it just doesnt show up on my admin panals? Whats going on?

What do you mean it does not show up in the administration panel?

I mean like if someone register's but does not activate the account however claim they have done so, as none of these notifications are displayed on my ACP. What actions can I take as the founder of my community?

They register but I have no information with regards to the accounts. Strange

Administration Panel > Users & Groups > Inactive Users