[anm89]

Meta comment: I'm not allowed to vote specifically on this comment. I can vote on its parent and children. Does anyone know why that might be the case?

[gruez]

It's probably to prevent pointless tit-for-tat downvotes from replies. eg:

1. user A makes a comment

2. user B downvotes user A for disagreeing with him, makes a reply saying why user A's wrong

3. user A sees the downvote (or not), downvotes user B for disagreeing with him, makes a reply saying why user B's wrong

continue ad infinitum.

[anm89]

I'm not the parent of this

[heavyset_go]

Did you already vote on it and forgot?