Coracle is not the only client, but it is one of the few and I think it was the first. WoT has been part of Coracle since before the replyguy spam attack last August. Then nostr:nprofile1qy2hwumn8ghj7un9d3shjtn4w3ux7tn0dejj7qgnwaehxw309amk7apww468smewdahx2tcpr3mhxue69uhhyetvv9ujucnfw33k76twwpshy6ewvdhk6tcqyr3vea70ypqr70e2ff2mx28smca78p2c5l2lxd3jlk4wl3exc8ywk7jze3q released his WoT relay in response to that attack.
I also like how Jumble has implemented WoT just for interactions, but not for original posts. This allows for still seeing every OP in a relay feed, while filtering out reply spam. Then, if you are seeing a bunch of OP spam, you know you should choose a different relay. 😂