A couple of points come to mind when reading this:
- If someone comes across a potential scam that they feel knowledgeable enough to warn people about, upvoting the scam post would be contrary to their values, but upvoting their warning to the top would be totally justified.
- The author of a post will get a 50% payout of all comments on the post, so even if a user didn't upvote the post they commented on, they still gave a 50% upvote with their comment vote.
To me, something is better than nothing, and I try not to look a gift horse in the mouth. A certain situation I may feel differently about is if they are upvoting literally spam to the top of the comments. But that only seems to be a problem among the smallest of accounts, and simply upvoting the relevant comments among the spam can remedy that situation.
Fair points. I didn't know about number 2, that's good information.
For the Scam warning, I totally agree with you.