It has been several years since I’ve davened in a place that permitted any drinking on Simchas Torah. As a rule, I attend an early minyan where there is no kiddush, one where they duchen during Mussaf. I make kiddush after davening and walk to various Shuls where the Rabbonim are my friends and winsch (wish) them a Gutten Jahr, with or without a jigger of schapps.
There is a Stiebel near my house with a rather large Kiddush and plenty of alcohol. There are two minyanim for Mussaf. The Gabbay kicks anyone who is drunk out of the main shul before Mussaf begins. Those who are drunk are then free to perform whatever laytzonus they want on their own. No laytzonus is permitted in the real minyan.
It is wrong to call an item that is written in black and white in the Shulchan Aruch and mentioned in the Gemara “zealous”. That is like saying that we are kanyoim for not permitting chazir in our shuls or our homes. The problem might be that some people follow the Gemara too closely when it says, “One who sins and repeats, it become permissible to him.”