I think it's worth countering this with the fact that FB ads work very well for us at Thread, because in the HN echo chamber it's very easy to lose sight of thi

I think it's worth countering this with the fact that FB ads work very well for us at Thread, because in the HN echo chamber it's very easy to lose sight of this. This is going to depend entirely on the product and the market. We're B2C, and a very "personal" service rather than a service for one's professional life, so that probably helps. Plus our target market isn't defined by being tech-savvy. As with all channels, optimising for customer acquisition (not just clicks), and lifetime value (not just easy sales) is critical for the long term health of the channel.