Fair enough from a business standpoint, but seeing as there are massive privacy/security risks involved in exposing your data to an opaque service, the open source component is probably a non-optional aspect of the value prop.
>>popalc+(OP)
how come? just because it's open source doesn't mean that they run that exact binary on their servers. ngrok does pretty well without open sourcing.
>>rgbrgb+rm
The locus of trust moves, if you have the source, and trust is a factor for you, because you can simply self-host and know what you're running.