Let's take a look at our own posts. - Hasty typing

Danbooru's tag autocomplete feature is very efficient - tags that previously had to match the spelling of a word or the order of words to be found were recently updated to search for tags with similar names, making it even easier to use.

When uploading from mobile, I tend to type and then touch on the searched tags to select them, but when uploading from PC, I tend to type on the keyboard and press [tab] to complete the tags.

The problem arises here. I usually have the image open on one side and the tags on the other, but in my haste to type, I accidentally tab on the first tag when the one I want is second on the list.

Probably the most common examples are photoshop_(medium) and medium_breasts.
There are over 700k posts tagged with photoshop, but I don't recall intentionally tagging a single post I've ever uploaded with that tag. yet post #6252822 became one of those examples this morning.😥

Other tag examples would be cow and cowboy_shot. I woke up this morning and notice that someone had corrected it, thanks @Neiri.

What other similar examples can you think of?

Added: ant and antenna_hair

I can't give you good examples right now, I mostly see it with random arttags because that's what I care to check. I noticed that some mistags I removed from posts, when not done by a mintagger copying tags from similar posts, are probably done by pressing tab or down + enter, if not wrongly selected on mobile.

What other similar examples can you think of?

Tagging sound in lieu of sound effects, or snake hair instead of snake hair ornament

Thank you for this reminder, I will remember and be careful about it!

i've noticed quite a few cases like that and i'm sure there are more that i flew over without noticing
There was one time where i myself accidentaly went with cow instead of cowboy shot but thankfully i noticed it before validating the post, other times where i've seen posts with a brown skirt for example being tagged brown shirt instead, or other color tags with clothing starting with the same letter

I saw quite a few posts tagged panties when there are none in the image. It seems like the intention was to tag pants or pantyhose most of the time. And because panties implies underwear, it results in two tags that must be removed at the same time (three if tagged with color variants such as black panties).

earlier today i was tag scripting for projected_inset and noticed that some idiot had tagged a post from the 00's with project_moon

turns out that idiot was me, thankfully it was only a handful of posts at the time and was a quick fix