Or in many cases, you choose a client that has a lot of spam protection built in and you don't even know it. 
I would expect to see dozens of clients appearing that all handle WoT in different ways without burdening the user with too many options.  

 Agreed.  This is inevitable.  I expect it will also become more difficult to discern which of those clients are 'protecting' you from more than just spam. 

 Agreed, but that's also why Nostr is a phase change and not an incremental improvement. 
You can always exit a client with no loss of data or network.