Frankly it being Federated in and of itself is already the biggest advantage over Reddit in my opinion. And let’s face it all of our opinions really that’s why we’re here. That already solves probably the majority of problems that Reddit had. As for the rest though? Bots are always a problem, not all are bad of course some are quite useful, but it’s something that requires constant vigilance to monitor because Bots can and will ruin communities. The other major issue is of course moderation. How do you police the mods? On that note I think the one thing I’d like to see done is limiting of power mods. Just like Reddit their do exist mods that moderate large numbers of different communities. This will always lead to problems.