The necessity for a decentralized forum

Decentralized applications have grown like gangbusters in recent years, as we chose to build our decision-making platform on Snapshot.

However, the discussion part is still kept in the office or in some popular forum like reddit or google, which may ensure the efficiency and convenience of the discussion to some extent, but it may also lead to content censorship, according to which, is it necessary for us to go for a decentralized discussion platform?