[StavrosK]

It supports blacklists now too. The bigger mitigation is that IPFS is a "push" and not a "pull" system, so you only store content you have explicitly requested.

[joshfraser]

Your blacklist becomes someone else's favorites list.

Changing a single byte changes the entire hash, so blacklists aren't a great solution if censorship is what you're after.

[atrus]

Blacklists are double hashed, so they aren't useful for finding 'bad' content.

[tscs37]

And who can assure that these blacklists won't be manipulated for someone's gain? Ie, surpressing activity they don't like on the network?

[prophesi]

Yep, and even the content you've explicitly accessed, it's garbage collected unless you pin it. So that helps further mitigate the issue, in case you mistakenly stumble upon undesirable content.