I am not worried about myself (Non O annual extension) . I am more worried about Lao friends who do border run every 45 days.
One of them was already denied entry at Don Muang recently (he entered Thailand too many times according to IO). He had to fly back to Laos then came back by land without any problem . Most probably it will be more complicated for him in the future.
It can be more complicated for first time entry of people older than 50 yo : If they intend to apply for a Non-O visa then annual extension, they will have to show an outbound flight ticket. And maybe for me, if I am not in Thailand on due date for extension renewal!