Yep. Everyone is allowed to give ratings, whether they are credible or not.
If you think Vod is hereby abusing his DT powers, (default trust), you can open up a thread in Reputation,
https://bitcointalk.org/index.php?board=129.0Which if valid, could remove him from DT1(?) and thus essentially voiding the effect of his rating.
(Although i doubt this is going to happen, looking at Vod's vast track record.)
Thanks for the advice. I will give it a shot and hope the evidence speaks for itself.