Barely 2 years ago I noticed that people were posting porn on Insta, and it was publicly visible just because they tagged #cum as #cüm. I don't think this is possible now, but basically corporations are dumb and people posting disallowed content can be creative as hell.
A perfectly normal warning on Instagram. KOSA is going to be perfectly fine... 🔥🔥🐶☕🔥🔥 ( lemmy.ml )
Source: https://www.reddit.com/r/oddlyterrifying/comments/1ajd915/searching_for_halo_on_instagram/