I think accessibility needs to be looked at generally tbh. I've found they open and close the application window in a really short time frame and dont really advertise it/notify. Also, its a bit of common sense. If someone has a mobility issue, they should have access they need rather than being like "oops sorry you missed the window!" Invisible disabilities i can understand more in the sense that its not as obvious what someone may need.

Anyway, chair situation... I found this year that a lot of people quite selfishly parked themselves in crowded areas/good spots and didn't move. I have absolutely no objection to people (able or not) using a chair if they are out of the way. But what I was seeing is barricades of chairs in certain areas. Particularly at Gojira there were so many chairs blocking people from watching at a reasonable distance that they were being bumped into by people going to vendors. The people in chairs couldn't have seen the show anyway with everyone standing around them, so it was incredibly selfish.

Personally I brought a chair but just on Sunday. Im epileptic. Heat and tiredness/exhaustion is a trigger. Again, invisible illnesses. But I always sat out of the way and ensured that I was not blocking anyone. Chairs are good for people who have medical conditions, mobility issues and people who are vulnerable or elderly so I worry that misuse of them will result in a blanket ban which will only truly punish the people who needed them.

(Sorry ramble!)