[dataker]

Technically, if they don't receive money in a Thai bank, it'd be both hard and unfeasible to be punished.

Don't wanna state the obvious,but even If you're coding(could claim to be open-souce work), it's not like the police is gonna spy on you.

[stephenr]

Any form of "work" (defined as exertion of effort from memory) is deemed illegal without a work permit - international volunteers need one just as much as those of us working for a commercial entity.

Re "spying on you": immigration police have conducted "raids" on coworking spaces, not to mention the potential for upset/disgruntled locals/competitors/whoever to report you.

[wila]

> could claim to be open-source work

Sounds reasonable , but it doesn't work that way. Work for free or charity work still counts as work and is no less illegal.

See also: http://www.thaivisa.com/462-0.html (the article is from 2006, but that law hasn't changed)