You are confusing your post on your blog with your comments that are left on someone else's blog.

Your comments are never automatically upvoted so you can't "turn it off". The only way to upvote a comment is to manually upvote it so it is never an accident.

Your posts can be automatically upvoted by you but that is not a problem. The problem is adding a comment to someone else's post and then upvoting your comment on their posts which you can only do manually.

Read this post again to understand it. I explain it very clearly in this post. If you still have questions let me know.

Don't really like the idea of being shunned for something so lame!

It is not as lame as taking rewards for yourself for adding such great insight to someone's post like:

Thanks