Lightsats does something similar, but if the recipient doesn't collect the gift, it returns to the gifter after some time.

There's a risk the service goes down or is hacked just like with lncash

I sent 1$ It worked on my phoenix wallet but the website never acknowledge the payment. Still waiting on the site to see my dollar :(

When I want to gift someone with sats, I often create them an account on my lnbits instance and tell them to use bluewallet with lndhub so they can access their wallet with a better UX than lnbits, I also give them a github gist where I tell them how/where they can use that, like that, and the fundamentals of bitcoin, and moreover, try to trigger their curiosity about how currencies really work.

If they don't use it after a while (6~12 mo) I take it back.

I like it. Reminded service https://tipcards.io/

Is nice onboarding. But without a proper education those new recipients will just forgot about that link and never withdraw to their own wallets. This happen so many times.

A great idea and a horrible idea, all in one!