Participante anónimo 740 Can be extended for up to 1 year, but rather than that, it should apply because one is not sure if when will be the next exit. Could be a few days later, a few months later or even a full year later.
This has nothing to do with the type of visa you've got, but whether you have a past "obscure" history with Immigration (like living for years on TR visas or border bounces) or if they suspect you'll be working here instead of being a digital nomad/attending soft power courses.
with my non-Thai money (credit/debit cards). I'm paying everything with it, from BTS tickets to accommodation and food since I first came to the country. I'm NOT doing this to do not pay taxes, rather, I see no reason at all to move my money (either partially) from its original account (outside of Thailand) to Thailand. As a matter of fact, I don't even have a Thai bank account.