You can downvote anyone where you think that it has not deserved but there are many of such services and many user buying votes for their posts, some of them have sometimes only one photo or just few sentences
https://steemit.com/@thejollyroger/posts
or blog of this user.
https://steemit.com/hive-109286/@mukada/painted-hulk-in-action
Therefore, it is like sand on a beach. I would advise to build up your SP and to get more engaged in activities of communities to grow your SP
Okay hmm, do you recommend buying votes? Are they profitable?
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
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