Seems to me there are two kinds of responses on this thread: (a) from permanent expats and (b) from infrequent expats - that is, those of us who come to LoS once a year to avoid northern winters.
Group A imagine that their reasonably untroubled life in the Kingdom is about to be profoundly disturbed by an influx of riff-raff from undesirable foreign locations. Even so, some members of Group A on this thread have acknowledged that they live in a region where "tourists" rarely infiltrate.
Group B (those more likely to spend a fair amount of money in their limited time in Thailand) welcome this change in visa-free time, since it reduces time wasted in traipsing back and forth to Immigration for "extensions".
If those in Group B do not, now, have to leave Thailand (maybe to Vietnam or Malaysia or wherever) their money saved from not having to leave and come back can be spent, instead, in LoS. Win,win all round.
Group B, however, wonder why Thailand cannot have the same kind of visa rules as Malaysia (90 days) or Mexico (180 days) and many other countries with 90+ days.