Being off-topic isn't necessarily cause for downvotes, and correcting English usage is often welcomed by people with a different native language. Saying you're

Being off-topic isn't necessarily cause for downvotes, and correcting English usage is often welcomed by people with a different native language. Saying you're going to be downvoted for something on the other hand, is more likely to get people to downvote you. In fact, some people will always downvote posts that have words to that effect.