As part of regular maintenance, we cull the database from time to time.
Most discussions and comments that started before 2016 will be deleted (with a copy of the DB kept, in case I delete something that is actually ongoing.
In addition, PMs started before 2016 will be deleted, so please, if there is any important information that you need to keep, store it somewhere safely.
I'll do the discussions etc. today, and the PMs in about a week.