This seems like general infrastructure for public use, that benefits all users by making the protocol more attractive to newbies, rather than something we can expect individual client developers or relay operators to finance and run indefinitely.

Otherwise, we risk skewing viable business models and getting newbies trapped in a client.

This would also even the playing field a bit between clients, as currently only the VC-funded stuff can afford "free to use" relays. That might spur innovation.