Here you have to speculate a lot. Because cloud mining is a lot of scam. However, that does not mean a signature campaign is also no scam. Some bounty that fails to touch the soft cap and hard cap is also likely to close its campaign. Closing does not mean a scam, but will create a new strategy and roadmap. If the cloud mining he web-based and sometimes on the web there is expiration, for example, only 6 months. When it has been 6 months the web can not be visited a.k.a lost. So, have more to speculate here!