Post in question:
post #3417265

Question:
After a friend linked the fantastic maxydont post #3417265, I noticed that male tags are being used exclusively here. The original Twitter upload simply reads: "...Charizard ignored orders!", which doesn't seem to suggest the Charizard's sex, and although male Charizards are more common than females per Bulbapedia, I understand the general procedure is to tag based off of what's shown in the image. Is a bit of muscle and a lack of "girl" eyelashes sufficient to assume male here? It doesn't appear to be a specific character with canonical gender (e.g. Ash's Charizard), and last I checked that's the primary exception to the "tag what you see" rule here. (That is, a character's canonical gender should be used if sex parts aren't shown, unless there's some other tip-off it's a genderswap/r63 situation.)

I would therefore expect this image to have tags like dominant_ambiguous, ambiguous_gender/male or ambiguous_gender/ambiguous_gender (depending on assumptions about Your gender), etc.

Maybe I'm being obsessive, but given it's a popular image, I was curious to get people's takes here before I kicked off any kind of tag-edit war on the image.

If you're not sure about whether a tag applies to an image, check the tag history. Has there been a previous attempt to make the change you think should be made? In this case no, so you're safe to make the change without opening yourself to the charge of edit-warring. If your change would be re-applying a previously reverted change, then you should instead report the post and ask the admins for a final ruling.