Probably the best thing you will be told on this forum:
@Robert ******
"What will happen in the future? Good question, nobody can answer. Always be prepared with the proof of funds, 20.000 Thb or equivalent money in CASH, proof of accommodation and onward travel."
I had similar experience as you.. I am convinced that they'll randomly stop people, give them a little hassle and send them on there way... I recently posted my experience so I wont do it again. In short, I always travel with the suggested 3 (funds, onward travel, accommodations). I have only been hassled a little the one time, made sever trips since.. I have seen them hassle another individual who also had all the things they needed. If they occasionally the occasional long-term tourist with short term visa they will get free publicity, catch a few jerks.
I wouldn't worry to much about it.