Would've been better if you could build a system that automates this part [saves a lot of headaches].
I will try my best to automate as many verification as i can using the system, however there are some campaigns that need manual verification. For example, the signature campaign, is very hard to the system to detect what signature a user uses in a forum.
Another example, to detect a Retweet in Twitter or a post in Social Media. But i will try my best and find out a way to automate as many as i can.
At least for signature campaign, it shouldn't be that difficult. You just need to visit their profile page and select HTML code for signature space (by HTML tag/class/id), then compare it with HTML code you expect.