https://www.ukpunting.com/index.php?topic=252893.msg2740792#msg2740792
It's open to guests with a limit on views. Normal registration should be restored soon
It should be obvious that the site can't survive if new membership registrations are switched off indefinitely. There are lots of member now, but without new blood that would eventually dwindle away (could take many years, but it would be inevitable). Although it will probably also lead to more work and headaches for the Mods and Admin team once registrations are re-opened.
Personally, I also think limited access to non-members is a good idea. Allow guests to get a taste, but not enough access for fulltime leaching/lurking. I thought that was available when I joined, but looking back at my first posts I realise it wasn't. The blind sign-up did put me off joining for a long time, so I probably would have contributed more reviews from that period if I had known more about UKP.
I suppose the main argument against limited access is that members only access deters curious browsers that find the site by accident, and could just be trouble makers (mums netters, etc). In theory, members only access should make new members more likely to be genuine punters determined to find good SPs.