We often notice that postings by new contributors receive upvotes after being downvoted before, despite these posts are
- very low quality
- completely unclear
- obvious duplicates (no research done as recommended)
- blatantly off-topic for the site
- even obvious spam or clickbait
That's an easy to spot pattern from the reputation gain of the OP, e.g. question shows -3 votes, OP's reputation is 11.
I can only speculate about the reasons why one would upvote posts fulfilling the above mentioned criteria. Be it (misunderstood) empathy with the OP, missing experience with the scope of the site ("Oh, that's an interesting question"), voting fraud or whatever.
Why I deem this upvoting behavior is problematic
- It gives a wrong signal about the posts content quality
- It encourages new users in keeping up with posting off-topic content
- It makes curation harder (especially if several upvotes weigh out former downvotes and the post goes > -31)
There's already a popup reminder implemented for downvotes casted by users, which are relatively new to the privilege (stemming from this old answer by Jeff Atwood):
Please consider adding a comment if you think this post can be improved
In a similar manner we should have a warning popup (at least for sake of consistency):
Please reconsider your upvote, or add a comment if you think this post is on-topic and can be improved. It seems to be very low quality or not appropriate for this site.
This should apply if the following criteria are met:
- The OP is a new contributor
- The post was down- and/or close voted before, and no edits (beside tag edits) have been done yet
- The voter is relatively new to the upvoting privilege
1)The post can't be deleted then by manual deletion or the roomba bot.