Clients and relays should try to block these bots as much as possible. And honestly (I don't mind becoming persona non grata on Nostr) we should start calling out this kind of behaviour towards new users. For example, if we see someone recommending that others install Alby Go (mentioning Alby again only because it's where plenty of new users end up), we should take the opportunity to explain that using a non-custodial Lightning wallet involves an upfront investment of both time and sats, as well as some technical knowledge to setup. We should also share a link to a reasonably neutral list of both custodial and non-custodial wallets, ideally with a couple of easy-to-understand paragraphs explaining the trade-offs, including the risks and a transparent breakdown of fees. (Same for Cashu stuff, etc, etc, etc).