What are the latest updates on the TM30 reporting requirements for expats in Thailand?

Just an update on TM30. First time I heard about reporting a stay away from normal residence must have been 10 years ago ,so off I go to the local police Stn to report I've been staying in Chiang Mai, they looked aft me as if I was a nut case so I explained that I'd heard that I must report to police on return, they knew absolutely nothing about it . No more heard of this until last year and I followed what was happening on here. I returned to the uk this year so on returning to Thailand I reported to the local police who took my details and filled out the appropriate forms online giving me a paper to take to immigration on my 90 check. (Imm office 100 km away). Just returned from 90 day check and a chat with immigration officer who informed me that if I stay in a hotel etc I don't have to report I'm there or report when I return to my normal address and if I leave the country I've no need to report on returning if it is my normal address in Thailand. The only peculiar thing that came out was if you stay in a private residence (i.e. Stay with friends or family) they are responsible for informing immigration of your stay same as the hotels are, but who will know. The paper I got on reporting to police was not needed so I still have it. I think this confirms that it's down to you to find out what is required at the office you use. Gook luck