BDSM is a grey area in certain parts of the terms.
Spanking / flogging is allowed but as long as no broken skin (cuts or showing blood).
OhmiShock / ElectroStimumlation / Estim is NOT allowed at all.
If there are other stimulations of BDSM that you are unsure of, you can email support@chaturbate.com or better contact shirley@chaturbate.com with details & keep a copy of the reply to cover yourself if needed in the future.