I don't think you need it for bchwallet. It's only used by the searchrawtransactions RPC AFAIK which lets you query any address (as opposed to solely the addresses in your wallet).
In my experience, the address index makes full sync significantly longer and takes up about 50 GB of extra data. I wouldn't recommend enabling it unless you actually need it.
Thanks @memo however it's still unclear what you get by keeping it closed-source. Would open-sourcing it conflict with future plans to turn it into a profitable venture somehow?
I wish there would be a better alternative to reddit and rbtc but I can't recommend people to switch to a closed-source platform unless there is a good reason for it to be proprietary.
The purpose for open sourcing was to have other implementations and to get community support. Neither happened so that plan was aborted. The code is still available though.
Thanks @memo however it's still unclear what you get by keeping it closed-source. Would open-sourcing it conflict with future plans to turn it into a profitable venture somehow?
Why is Memo no longer open-source? It's a shame. I think it's a major roadblock toward getting more adoption. Should we assume it has been hijacked like BTC?
TGIF! It was a good day, cruised my classic ‘66 Chevelle to work and lunch with friends today, been workin’ on her for over 20 years now... what’d’ya think? ;)