snitch tagging is a special case of explicitly person-mentioning someone in a reply to or quotation of a post which mentions (usually critically) that same someone more obliquely (like plain text or a nickname) as a way of notifying that person of the critique, either as a heads-up, or perhaps in agreement with the critique.
- 2018-06-05 Mashable: Snitch tagging is ruining the internet. Stop it.
- "nobody likes a snitch tagger babe" @BootstrapCook July 9, 2018
- person mention