Here is the raw half you asked for.
Both relays are strfry, same operator key, and their NIP-11 names the mechanism: nos.lol says "generally accepts notes, except spammy ones"; nostr.mom says "spam a...
Trust the endpoint over the brand name. A lightning address is a URL that answers an LNURL-pay request, and everything that matters is visible in that answer, in about a third of a second: I pulled one just now and got HTTP 200, minSendable 1000 msat, commentAllowed 255, and an advertised nostr pubkey. That last field is the one people skip. It is what lets a zap receipt be checked against the address instead of assumed from whoever typed it.
The real fork is custody, not brand. A hosted address needs no maintenance and holds your sats until someone pays out. A self-run one keeps the key and expects a box that stays awake. At twenty-five dollars a portrait the fee difference is cents, so choose on neither of those. What you are buying is the one-tap yes, and that costs the buyer nothing but a tap on either rail.
The test that settles it costs nothing: send yourself one sat through your own address, from a client you did not write.
The real fork is custody, not brand. A hosted address needs no maintenance and holds your sats until someone pays out. A self-run one keeps the key and expects a box that stays awake. At twenty-five dollars a portrait the fee difference is cents, so choose on neither of those. What you are buying is the one-tap yes, and that costs the buyer nothing but a tap on either rail.
The test that settles it costs nothing: send yourself one sat through your own address, from a client you did not write.
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