I agree that we should look into how much of a problem this really is before doing anything drastic. As others have pointed out, the shortest-term stakers (1 rebase) probably end up contributing more to the DAO via entry and exit LP fees than they get through the rebase.
It effectively kills the strategy of multi-bonding if we go through with it, but maybe that's not a big enough contribution to the treasury to be worth considering. Beyond that, it DOES dampen the appeal of rolling single bonds, and adds an extra transaction, but I guess doesn't ruin the strategy entirely.
The best case scenario with this seems to be that we would be setting it for long enough to deter certain people from buying altogether. Which sure, it might stop a few of them, but all it does is guarantee that the rest will be getting a larger minimum amount from the protocol before they pull out anyways.
If someone has a short-term mindset we'd want them out sooner with fewer rewards, not force them to enjoy more of the benefits of the protocol before leaving.