A forced matrix is a system where there is a limit to the number of referrals any affiliate can refer. It makes sense to use this feature if you have defined multiple commission tiers. If you have single tier commissions only, it makes no sense to structure your affiliates.
Why should I push my affiliates into Matrix ?
If you want not only the best performing affiliates in your affiliate program, but all affiliates which were registered during a time period, the best thing to do is to give all affiliates periodic commissions to keep them motivated while notifying them of the commission they receive. The more active affiliates you have, the more users will try to promote you. You can also consider the number of back links to your site, which will continue to grow. Newbie affiliates can see in Forced Matrix the advantages of staying with you, because they can earn commissions even if they will not be so successful in recruiting new sub affiliates. Forced Matrix helps to ensure your affiliates perform better and that sub affiliates will stay motivated and improve in the future.