Bitcoin is a free protocol and software to use. Anyone can participate and win/lose during the participation. The ones that came and go because of the bitcoin price are not clowns,in my opinion. They are a useful component of the ecosystem. They will promote bitcoin when the price goes up and will demote it when the price goes down. Either way they are a free marketing machine and they will bring attention to Bitcoin whenever they feel sad or good. Some of the people that will hear Bitcoin from them, will like the software/protocol/idea and will participate in the network, with whatever way they can. This is the beauty of Bitcoin network.