They once stamped me as overstayed because my flight back was 1 am and they said my visa ran out at midnight! I tried to tell them that I went through passport control at 10 pm so had officially left the country at that time, they wouldn't have that but very graciously let me off the overstay fine!
I'm not saying don't come, I lived here for 12 years I'm just saying feel you're way around first and make sure it's right for you also I worked here legally with a work permit so no need for the endless visas you have to do to stay here but good luck!
Just come for an extended holiday first. Thailand isn't what you see in the brochures you can get conned, ripped off, left penniless the list is endless but you need to try it out first!
Most Thais hate falàngs unless they can make some cash from them, same thing applies to the government, you have to be blind not to see it! We are not welcome here!!!!!! (Unless we are rich)