Basically Banksy did some graffiti on one of their toilets. They scrubbed it off.
Now they find out it's a Banksy and they say "We would obviously welcome an appropriate Banksy original on any of our seafronts and would be delighted if he returned in the future."
It's either unwanted graffiti, or it's art. It's not suddenly art because some wanker calling himself Banksy painted it.
www.bbc.co.uk/news/uk-england-essex-29446232