If you are a tourist you are probably fine. If you are trying to live (or almost live) there or spend an extended time then you might have issues. It all depends on what the IO thinks you are trying to do.
I have a couple of them. They are okay but don't deal with noisy environments well. Plus people seemed confused when I wanted them to talk into a mic rather than to me.
Muay Thai is the only one I have head of actually being approved. Cooking / language etc were talked about but I have never heard of anyone being actually given one. If you want to do language or cooking the old ED visa does the job.
If you do go for soft power expect the same crackdown to come along that hit the ED visa this year.
No, as far as I know there is no medical O visa. There is a medical DTV or if you are hospitalized they can get you a visa while under care, but that is more of a “ I am not overstaying I can’t leave type thing” ie emergency.
No and no. You need to put money in a Thai bank for the retirement visa and they are cracking down on people doing border bounces. You also can’t legally work on a retirement visa.
If you truly make decent money look into the wealthy pensioners ltr visa or the privilege visa.
I did mine through Chicago and only used one months statement but the amount was quite a bit above the minimum. Also I was one of the early ones to get it so requirements may have changed. The only additional thing they asked for was a copy on my resume I guess to verify I had been working in my field for awhile.