Unfortunately, we had to remove the user hirngespenst from our Signature campaign because of the following reasons.
Firstly, he got legitimate negative feedback in his trust. Secondly, he tried to use two of his alts in our campaign.

Proof:
https://bitcointalk.org/index.php?topic=5237630.msg54149455
https://bitcointalk.org/index.php?topic=5217201.msg53594818#msg53594818
https://bitcointalk.org/index.php?topic=5217201.msg53916990#msg53916990

We have already  found substitution for this user and will announce this on Wednesday.