most of them are either bitter old men upset at the requirements of the non o retirement visa or its people who couldn't qualify for it and are suffering border runs and now cant stay long time. The DTV visa is working as intended and bringing money to thailand. Lots of people can't help but want others to suffer or struggle. They also sit in thailand as a foreigner and complain about other foreigners in thailand or their home country. It's a sad bunch of entitled angry individuals.
that's correct depending on your country and tax treaty for instance student from usa are tax exempt on a student visa, but its not specifically because the visa . Its based on the individual tax treaties. After 180 days you become a tax resident, but your individual country tax treaties might exempt you.
If you don't have proof of payment received for recent work/contracts you're probably better off just going through soft power. The restrictions on the visa are the same and you could still do remote work later when your business is active again.
The 90 day report isn't specific to the DTV its for all visas that you will be in the country more then 90 days on a single entry stamp, like a retirement visa. It's standard compliance hence why it wasn't listed solely under the DTV.
It's a 6 month multi entry tourist visa. You will still only receive 60 day stamps that can be extended to 90 days and require leaving the country atleast 1 time to use the full 6 months.