[mschuster91]

When you're dealing with bribery, you can't prevent blackmailing/fake reports at all.

What you can do, though, is to provide HTTP, HTTPS and TOR access to your webservice to allow everyone to submit stuff at his/her own security choice.

If possible, change your IP address(es) and domain names on random intervals; you can use free domains like .de.vu and friends to have reliable "entry points" (an example is canna.cu.to).

If you have an android app anyway, try building a "distributed" service like BitTorrent or Bitcoin for information exchange.

[artas_bartas]

Having spent some time interviewing typical users I can say that this would work only if we put the distributed service bits under the hood, while leaving service with all the trappings of a normal website.

Regular users often times find it difficult to use regular apps, not to mention things like TOR access. And since we want as many users as possible being able to use it, we cannot just waive them off saying "go learn Internet" :)