KeepSats on v4v.app is not a way to hold large amounts of BTC
Is this because of its limitations or because there's still a possibility for a sort of breach by let's say hackers?
Well, it depends on how well you the developers have done their jobs, but it's still probably good to keep it on small scale.
I'll put it this way: Lightning is developed by some very clever developers BUT they still call the core software a "beta" version.
Whilst I don't see a catastrophic loss happening, there are known issues within the system which can cost me a lot of sats if communications errors happen at a time of high Bitcoin fees.
I'm running the service, and I am taking a certain amount of considered risk, but I don't want to be holding a lot of sats in trust for others. This really is a stepping stone to @vsc.network which will de-risk this for me.