V3 transaction policy for anti-pinning

A specific recommendation of a maximum fee multiplier, such as "5x max," is suggested in the BIP (Bitcoin Improvement Proposal) text to accommodate varying mempool scenarios. However, there are concerns about the choice of anchors for transactions. The use of an ephemeral anchor, which could be susceptible to malicious actors, is questioned. It is argued that a normal anchor with a checksig would be more secure and less vulnerable to attack, reducing the potential risks posed by attackers. This approach would limit the avenues available to attackers, potentially safeguarding the transaction process from unnecessary exposure to malicious activities.