flaccid is the same as penis -erection, and the same is true in inverse.

It seems to me that since this is the case, one should be kept and the other dropped.

Thoughts?

Flaccid is definitely worth keeping. It's not often that penises are depicted in that state so it's useful to have a separate tag for it.

Jerl said:

flaccid is the same as penis -erection, and the same is true in inverse.

It seems to me that since this is the case, one should be kept and the other dropped.

Thoughts?

penis -erection would also get results for little penis, magic penis, etc.

Flaccid is a good tag, just needs to be populated.

There can also be both a flaccid penis and an erection in the same picture.

I'd say, on danbooru, an erect penis is the standard, and the flacced one is the one worth tagging.
Erection doesn't even have a wiki, and I'd say an erection is most of the time only worth a tag if it's bulge.

I usually apply erection for people "pitching a tent." bulge is for the normal state, usually seen while wearing speedos, underpants, or tight clothing.