In your profile bio it says that one should follow you for good curration. So you want to say that you only flag because @twinner voted? (Guilt by association)
We put hours of work in every issue. Hence the length of every one of them. (I bet you see that. :) )
With this flag you disagreed on the reward we get for our work. Isn't it completely regardless if twinner votes? Or someone else you eventually don't like?
With actions like this you may be harming twinner because he doesn't receive his 0.5 STU curration rewards. But we don't get our rewards either.
[Edit: Sorry if my english is all over the place. :P]