First I had 9 months on a Special Tourist Visa. Then 1 month out. Then a SETV for 3 months followed by a visa exemption for 2.5 months (no nights spent outside of Thailand between those two stays; no questions asked at the Nong Khai border for that VE). At the end of last month I did a quick visa run to Vientiane and got my latest SETV.
However, I was questioned while entering at the Nong Khai border on that most recent entry about why I had been in Thailand so long. The officer asked where I going, had I family here, and what I was doing in Thailand. When I said I was here for tourism, the officer said I couldn't be when I had been in the country so long. He then asked for extra details about the address I was going to stay at before stamping me in.
As I was getting my passport, I could hear the farang in the line to my left being asked where he was going to (a somewhat daft question, as this info gets put on the arrival card). I wasn't around to know if he got the same grief as I did though.