Seems like a way for people to exploit developers from non-US countries for “prototypes” and hours of labor without paying much of anything at all. They offer these bounties in hopes that people apply for the exposure and learning, or from somewhere that the USD carries a lot of weight in the applicant’s native currency. Likely not aimed at professional developers from a superpower country looking to make money from odd jobs.

I don’t know if I would count HTML alone as coding either way, tbh. It’s a markup language, not a programming language.