Bitcoin is a decentralized system. It is open for everybody to start participating in it and theoretically, even change how it works. But in reality we have got organizations like the Bitcoin Foundation or groups like the core developers which have a huge influence on the development of the platform.

The current debate on the whether, or not, the block-size limit should be increased, shows that the process of decision making is far from optimal. Even though that I am a stakeholder in Bitcoin and for several years a member of the community, I do not feel that my voice is heard much and that many of the discussions about the development happens in hard-to-find or hidden places, which are difficult to track or influence. E.g. when the OP_RETURN byte limit got suddenly decreased without any prior notice from 80 to 40 bytes. This caused a lot of unnecessary problems for people who build higher level protocols on top of Bitcoin like Counterparty or Colored Coins.