Please consider reporting this at the PG forums as a false positive. Comodo Secure DNS is not a bad guy.
I also use the the blocklist.com bt_level1 blocklist in tandem with PeerGuardian p2p list and
the NeuStar entry also exists in that list. I dont think that reporting it as a false positive would
do much good, I imagine it exists in a multitude of blocklists. It is simpler to just add an allow list
or even simpler still to right click the blocked item in PeerGuardian and select "Allow permanently",
this will override the item no matter how many lists it is included in.