Wot would limit your ability to find far away people and vice versa. I can see how it could reduce engagement. Everything isnangive and take though - no perfect solutions exist (in anything).

I halfway agree abt the relay situation. This method will hide spam notes from being served to your client. But that does not mean those spam notes do not exist on certain relays. I would think the relays that implement wot would block most of the spam notes so no abuse since they wouldn't be storing them. It's the relays who don't implement it (or some other method) that would continue to be abused.

So what would be your alternative solution?