Mr. Goldstein, you may not be aware, but there has been a previous scandal in our community with Javascript mining. These kids running a podcast used Javascript mining without asking permission - essentially stealing from their viewers. There was a HUGE expose on The Bitcoin Show if you want to read more about it.

So you can understand how this technology has gotten a bad reputation as facilitating theft. A Javascript miner that asks permission would be another story, but in any implementation you'd be working against the sour reputation the technology has acquired from imprudent use.