Community / Posting Guidelines
Last updated: May 30, 2026
Listing Guidelines cover what can be sold. These Community / Posting Guidelines cover people, photos, events, and communication.
No unauthorized reposting
Do not repost photos or content without permission. Do not upload photos, videos, writing, artwork, screenshots, or other content created by someone else unless you have permission from the rights holder.
Subject and photographer consent
Consent from the person in the photo and Permission from the photographer are required before posting. Respect cosplayers, photographers, editors, and everyone involved in the shoot.
Event and venue rules
Follow event and venue rules. Respect rules set by events, studios, venues, public facilities, and transportation providers, including photography, changing, props, and movement rules.
No secret photography
Do not secretly photograph people. Do not post photos taken without permission, voyeuristic images, photos that intentionally expose bystanders, or content that encourages nuisance behavior.
Photos of minors
Photos of minors require special care. Confirm consent from the minor and guardian where required, and follow event, school, or organization rules. Sexualized content involving minors is prohibited.
Exposure and sexual content
Character costumes and glamour-style photos may be part of cosplay culture, but excessive exposure, sexual acts, strongly sexual poses, R-18-equivalent content, and fetish-oriented appeals are prohibited.
Harassment
Harassment is prohibited. Do not attack, stalk, shame, threaten, or sexually comment on someone based on appearance, body type, age, gender, nationality, language, cosplay history, costume quality, or identity.
No dating or pickup use
Dating or pickup purposes are not allowed. Do not use awase recruiting, gallery posts, or messages for dating, sexual solicitation, or inappropriate off-platform solicitation.
No discrimination or hate
Discrimination or hate based on nationality, race, ethnicity, religion, gender, sexual orientation, disability, language, or identity is prohibited.
Reports, removal, and restrictions
Reports, removal, and restrictions may apply. COSMA may unpublish or delete posts, limit features, or restrict accounts when content or behavior is inappropriate.