The risk begins after BIP 91 activates.
Hey, can i ask you one more question? Is the risk just about trading with people you don't know or overall sending transactions/receiving them?
I want to transfer my bitcoins from electrum cold storage to trezor, but not sure whether it's safe to do it now or is the risk we are talking about involving even the transactions i do to myself (from one of my wallets to another of my wallets).