Forum upgrade

A couple of people have mentioned that they're no longer receiving subscription notifications. If you've noticed a specific pattern to this (i.e. used to be subscribed to a forum, not any more), could you let me know please?

I've done a purge of old user accounts over the last few days. If I've mistakenly blocked anyone (you'll get a notice saying you're locked out or blocked when you try to log in), please get in touch - This email address is being protected from spambots. You need JavaScript enabled to view it..