Their typical responses are (I'll paraphrase):
  • They don't see it having a bright future like Eth or some other project.
  • They feel tooling isn't as readily available to build cool projects.
  • They think Bitcoin is only about the asset, no smart contracting or interesting things can be built on it.
  • I can't build on a planet killer (due to PoW).
  • There is no clear path for me to become a Bitcoin/LN dev (something Qala is solving).
  • Some feel it is a scam (a small minority).
So I'd say I get several consistent responses when engaging with devs, usually falling into one of the many above.