Are we going to go round the houses on this for ever & ever? Only people that will suit are the agitators & finger-pointers.
Time for a step back & work out the way forward.
First, an observation, which has already been made. If you are going to place restrictions on a thread, you must make it clear what can & cannot be posted in that thread. Perfectly clear! You haven't, so currently, subjects such as 'meeting up' are both correctly & incorrectly included. Mods, you need to issue guidelines for this thread. You won't get it right first time around, so build it up.
Can I offer a solution?
1. Continue with the match day thread, but specify exclusions/restrictions in the OP as a standard.
2. Open a companion thread for each match day thread, with no restrictions, to accommodate banter, meet-ups etc.
Might not work, but why not give it a try - unless someone else has another solution. I'm sure it's out there, as this was just off the top of my head.
I'll close with a question to Mods - is it possible or in any way manageable to transfer a comment from the match day thread to the companion if someone does err?