Feature suggestions and discussion [READ THE FIRST POST]

• If the tag in question was present on upload and unchanged since, the time used for sorting would be the same as the upload time.

• option to choose either sorting by earliest time the post had the tag, or most recent addition of the tag (makes a difference in cases where a tag may have been removed and re-added)
• ability to apply the sorting when a search query is for a single tag, not only when directly visiting a tag page
• alternatively, much more generally and I’d guess much more complex, ability to sort by most recent/initial time that a post was a valid result for any arbitrary search
• ability to use this sorting for one’s watchlist

• Alternately, instead of hiding/revealing images, “viewed” images could be moved to the end of whatever sort order is in use.

• Do you want to see previously unviewed images?
• Do you want to see images that are new to a certain tag?
• Or do you want to be notified when an old image gets added to your watch list?

• Yes
• Yes
• Not notified in the usual UI “notification” sense of a pop-up or count-badge, but for it to be presented in a way that it will be discoverable in a similar fashion as “new content”…I do not use a watch list, but that is something I would value if I did, yes. (Part of the reason I do not is because it seems redundant with just performing a well-crafted search.)

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1. When an artist has a DNP, you can find it on the DNP list (for which other people have already posted about its shortcomings), or by visiting their artist tag page (example - not picking on this artist, they’re just alphabetically the first one with 0 images, from the DNP list). However, the quickest and most front-facing interface on the site is search, and performing a search for a 0-image artist tag yields no information that the site knows anything about them, leading to extra steps to find out if it’s due to DNP.
2. For non-artist tags, showing that a tag has existed but has 0 images gives the hint that the tag is not to be used - maybe it’s a misspelling, maybe it’s in the wrong form but not used so often that it’s gotten aliased, or otherwise simply not used on the site. Someone with enough curiosity could follow the link to see the tag changes and check the images which had it removed, to potentially learn what tag to use instead - but as it is where the tag is not displayed at all, there’s no information, no link to follow, and nothing to learn from.
   
   Again, one could visit the tag page to find out these things, but as in the first point, it is not the primary search interface that’s most directly accessible.

Have a way to bookmark comments. It might be best if this is private.

Give an option to name an image like they do on Derpibooru. Especially useful for Derpibooru Exclusives.

Give a badge for putting in the original description and date of the original image on Deviantart.