Which is the technique to avoid transactions link to a wallet?
You can't easily avoid the linking of bitcoin transactions when the blockchain is transparent in case of transaction historical traces even though the users ID's are pseudonymous.
Perhaps it scrutinizes users securities in terms of p2p features since the blockchain is decentralized. Moreover bitcoin linking transaction would do you no harm but facilitates to enhance your transactions efficiently.
Maybe you should have a review towards what you intended to ask here because I feel you mean linking of wallets.