Very strict standards would become political very quickly and lead to conflict. There is a huge difference of opinion about what constitutes tidy and weed free. My plot has stinging nettles on it. They are a useful habit that attracts beneficial insects. I let the grass grow longer as a habitat for frogs. I don't use chemicals on bind weed just pull it out. My shed leans over a little and needs painting. It looks a bit of a mess sometimes but is actually fairly well cared for. But some people won't see it like that. The wonderful thing about an allotment is that it is a space to play a bit without too many rules. And a more relaxed approach to care is more sustainable in terms of effort.