* Less engaging (eg other person can be browsing HN while we chat with zero risk of me realizing)
* Less expressive communication
* Greater anonymity, and thus more difficulty establishing trust
I guess you’re coming at it from the perspective of an expert and I the person seeking expertise. But the whole value of the platform isn’t in giving away your expertise for free, it’s giving it away in exchange for the expertise of someone who can really help you!
IMO it makes the most sense as a user to optimize for a better expert-seeker experience. The benefit you derive from a super helpful conversation with an expert is likely to far outweigh the slight annoyance of voice chat when you’re the expert.
No seriously, many people are quite uncomfortable when they have to use their voice for communication with foreigners.
I don't know how Coffee Chat handles the whole 'language' problem (native vs. English), but for most non-native English speakers, having to speak English is a higher barrier than having to write it.
So your points are valid too (and I could add that some people can't type as fast as they want). Therefore it would be a good idea to have 'voice' as the primary means of communication and 'text' as an alternative.
You probably talk a lot, I write a lot. So we are good at different things.
Talking / writing has nothing to do with anonymity, you can talk for two hours and I would still don't know who you are.
I can’t imagine spending several minutes trying to retry and repeat on a call that’s supposed to be no longer than 15 minutes.
Voice and a whiteboard, or text chat, would be better.