The risk you're talking about re: echo chambers makes sense -- so far, we're trying to mitigate the issue by making it possible to 'follow' both the customized

The risk you're talking about re: echo chambers makes sense -- so far, we're trying to mitigate the issue by making it possible to 'follow' both the customized and uncustomized versions of the topic. Any other ideas are always welcome. 'Hide' sounds like a really neat feature!