I was temped to join your signature campaign since your project is one of the most interesting around right now, however I have just calculated that the reward is one of the lowest I have ever seen on Bitcointalk. You boast a 1 Million $ Bounty campaign, but the signature campaign is only 50,000$ at the most. In this moment there are already 166 people who have joined the signature campaign, which means that on average people will receive 300$ worth of tokens for the whole campaign, which is ridiculous not only in comparison to any other signature campaign, but also because it is not clear how long the campaign will actually last. So one person may have to keep the signature for several months for 300$ in total or LESS. Yes, less, because more people who can't do math will probably join the campaign in the next weeks and the reward will shrink further.
Sorry, project is good, really good, so I will keep your signature for free for a little while, as a gift, until I find a better campaign. All the best with your project!
PS: You have also forgotten to make an avatar - really a not well organized signature campaign.
you can take the brand-picture of the project that I created earlier (in my profile). For her unlikely to add tokens, but to popularize the project itself, a very promising feature