False. That would be an actual incentive if people couldn’t go to mempool.com to get fee estimation if they suspected the estimation from their mempool was not accurate. Marginally faster block propagation, but at what cost? Propagating trash? No thanks

You are always free to trust third parties to your own detriment 🤷🏼‍♂️

Not surprised a spammer would be spreading disinformation about the benefits of spam