<i>In truth, it seems unlikely to me that those people won&#x27;t simply be able to migrate to other services when they can afford it, but I also find it hard to believe that there won&#x27;t be some (possibly significant) monopolisation effect.</i><p>If we&#x27;re worried about long-term effects, but concede there&#x27;s a gain for everyone short-term, isn&#x27;t the right thing to do to let them do it now, and if these negative effects materialize, then stop it?