Neat, this isn't the first time I've seen something like this come up so it essentially validates the use-case for them.

I remember seeing a post on Reddit[1] about ~4 years ago made by the same person who made this[2] post on HN about a year ago.

[1] Does anyone else use salesforce as PRM (Personal Relationship Management) System? https://archive.ph/3mB1U

[2] Show HN: Nat.app, personal CRM that knows who you're losing touch with https://news.ycombinator.com/item?id=30836418