Is there any mods actually going around and adding tags to the posts that say "tagme"? I really dont think there is. But I want to check. I never feel like I know the right tags to apply to an image, because should I use "large_breasts" or "big_breasts" or "xl_breasts" or etc etc etc. There are so many variants of the same thing, but only one is "right" and I dont know which one.

Hey! Yes, some of us are actually doing that

Going off danbooru's definition huge breasts are larger than the character's head. If they're still big but not bigger than the head large should be fine.

And I add tags when I can, but I'm not really sure how many tags should be added before 'tagme' is no longer considered necessary.

I just realized that ANYONE can edit the tags of ANY post. I just assumed only mods and the post owner could edit the tags :P

A question that has plagued the internet since the invention of the booru.

I always feel anxiety whenever I'm about to remove the "tagme" tag. As if someone's going to come out of the woodworks and say "this model isn't tagged properly!"

Then I remember that there are models that are literally tagged "breasts, full_body, model", and I feel a little better.

Forgive my necroposting, but I think this is quite a common sentiment.

how do you tag a model? I actually can't work it out

The customary procedure is you name the character your post represents, name the source material, list off what features the model has, and add the "tagme" if you're not sure what else needs to be mentioned.

However it should be noted as of Rule N°3: Try to tag it to the best of your abilities before adding a tagme, a post that only has the "tagme" tag is pretty much a kick in our faces
(since you cant really search for it--- breaking the whole reason for this booru)