It's still a cheap place for a holiday. Double pricing has declined a fair amount from when I first visited Thailand, or maybe because I speak more This they don't try it as much not sure.. Personally it doesn't bother me that much regarding the national parks extra charge, although it does show an issue/inconsistency with being very nationalistic but also heavily promoting tourism.
The cannabis part annoys me a little, for different reasons then it would possibly for others. Thailand has liberalized a fair amount over the last 2 decades, but not in a good way for most foreigners if you're similar to me. Same sex marriage is now allowed. Cannabis legal. Drinking culture has increased. All things I have no interest in. Obviously if any liberalizing was going to happen it would have been nice to get a realistic route to permanent residency. Maybe some protection rights for foreigners. But no, in that regard things have got worse if anything making Thailand not a suitable long-term option. Still ok for a holiday, aside from the road carnage, increasing air pollution, and that you could be jumped and the perpetrators will tell the police they were 'protecting fellow Thais' and give a little wai before walking off scot- free, and with it reducing around 99% of the potential 'quality tourists' the TAT keeps droning on about.