If people are going to get banned or suspended (that sounds like naughty kids at school!) at least there should be a list of rules somewhere, so that posters know what they are.
I have posted on a number of sites, and have never known a rule that says you can't refer to another thread, for instance, so could easily have done that without realising it was an offence.
Not talking about people who have gone seems fair enough if they don't have a right of reply, but on most boards there is a reason given if someone has been banned, and usually it is a very rare occurrence. The rules here seem arbitrary. I don't know about missing threads, as I'm usually only around late in the evenings, so miss a lot of what happens in office hours.
I can't remember how long I've been around, but I know I have posted more since lockdown started, and I can't say I've seen much of a change. I know that there is no way of knowing if we are all older women, but assuming we are, I'm sure that we don't need to be monitored like this, and treated as children. It's rather disrespectful, surely?