Reddit is removing your chat history from before 2023::As part of a migration to a new architecture, Reddit chose not to migrate chat histories before 2023. Though it offers a way for users to request their old data, including chat histories, some users say they’re still missing messages.
There was. I turned it off in 2019 because I was using a 3rd party Reddit app and didn’t realize 5 people tried to message me through the chat feature.