Some sellers asking to communicate outside of LocalMonero trade chat

Are there any rules against conducting trade details outside of a trade’s chat? For arbitration purposes discussing trade details and terms outside of the trade chat is ill-advised but are there currently any site rules about it? I only see a suggestion to keep trade communication within the trade’s chat in the FAQ…

Comms outside of the trade chat may or may not be taken into account in case of a dispute. Trade chat comms are always taken into account.

I see, thank you for your answer.

Try not to chat outside of the transaction to avoid loss of funds