My local Immigration are very relaxed about the TM30 business. They know where I live and all is well.
BUT
When I used to go to Udon Thani Immigration there were people turning up for 90-day reports and if they had no TM30 then Immigration wouldn't accept their reports. Yes, it's not your fault but you are non-compliant. As I recall, a Baht1,000 fine was the usual resolution.