As such, users sending transactions in the $ 200 to $ 400 can prevent from attaching $ 15 to $ 30 fees for their payments. (links2exchange.net)
This means that it is useful as well as safe to send transactions with a gas limit well above the estimates. (ethdocs.org)
While proposed Layer 2 protocols are at an early stage and haven't been outlined in detail, they essentially work by sending transactions to an «off - chain» platform. (cryptonews.com)