An additional long term staking contract (i.e. 12 months) with favorable fees when withdrawing for the agreed upon duration may be helpful.
Having more than one staking contract length may be helpful for various reasons. The user may save on network fees if they chose to only withdraw once a year, for instance. Additionally it would help tax wise for holders in countries that require users to disclose staking rewards for tax purposes. Of course the interest rate would not be affected, only the network fee upon claiming.
A primary motivator may be, as motioned above, for tax purposes. Claiming staking rewards daily/weekly is very difficult come tax day. Actually holding and staking on an exchange would be easier, as you can import those tax documents directly from the exchange. But in the spirit of true ownership and interest in direct network participation, many holders prefer to use self-custody wallets (i.e. Moonlet). Withdrawing early could result in an increased fee.
A potential negative on this would be the network may appear less busy, as users would not be claiming often. Not all users would partake in the long term staking contract, as they wouldn’t need too. The interest rate would remain the same, so this would be for those that don’t want to claim daily without incurring unfavorable network fees.