Well, I am amazed that nobody here has mentioned this yet - I saw it on another online source and thought they were trying to pull our legs:
https://www.bangkokpost.com/thailand/general/2757426/songkran-splash-sites-to-be-strictly-booze-free
One has to wonder what kind of drugs the powers that be are taking to even consider a draconian rule like this - getting boozed up and having fun is what Songkhran is all about to millions of Thais, never mind like-minded farang visitors - how in the hell do they even hope to enforce this in Pattaya, send in the bloody army?? The mind boggles - maybe April Fool's Day has been moved ahead this year.