I think it's important to realist that it's not at all about the owner to be evil or benevolent. It is all about what structural and economic incentives exist. A for-profit corporation based on the business model of advertisement is structurally incompatible with some objectives that I - as a netizen - want to achieve (freedom, privacy).

This is also why I don't agree with those of "it's a win for decentralized" or "it will bring users". For me decentralization and other properties (e.g. OpenSource code) are only some necessary conditions to achieve the above abstract and ideological goals.