The reason why the "tags" appear to be unrelated is due to the fact that most posts are created on Steemit which does not differentiate between first tag and parent_permlink. on steemit, your first "tag" is your default category
Then again when when you use the Steem api to fetch content on the a particular tag, let's say "story", it will return posts that have the tag "story" in them - not just those that have their parent _permlink as "story"
That means that the post tagged as "dmania" does have the tag "question" in it somewhere as you can see in the screenshot below(open in a new tab to get full size):
Since there is no way to sort by main category instead of wherether or not it contains a particular tag, then to an extend the Steem blockchain's sorting functions consider them related.
One possible way to handle the situation will be to hide the "tags" button, however I plan to soon add a feature to allow for browsing on post through tags - in a way that will not deviate from the site's main theme.
Thank your for your interest, there will be more improvements in the upcoming updates.
https://steemit.com/live/@almoon97/beautiful-relaxing-music-24-7-study-music-sleep-music-meditation-music-sleeping-music
Do you want to show only posts that are created through peerquery?
Maybe it will help to create a custom json for that - dmania does that. However, this can still be gamed through creating Posts via code.
But this on the other hand could be solved by adding some kind of encrypted text which proofs that the post was indeed created through peerquery.
oh yeah, actually this is only the alpha. actually the beta version might include a database indexing system to index posts created from peerquery.com
that way our future upvote vote(concept borrowed from the Utopian bot) could upvote posts created through peer query