Why purplepag.es? That's an indexer that only stores kind 10002 notes. No one will be able to write notes for you to see there. Stick purplepag.es in your General Relays.

Public relays can make decent inbox relays, so long as you aren't getting a bunch of spam. However, this is where paid and web-of-trust relays shine, really cutting down on the amount of reply spam you get, if you have them set as inbox relays.