Linden tightening up on registration process

Interesting, Linden Labs have made some changes to the registration process.......I didn't notice this before, have any of my readers that are SL residents notice this clause before?

2.4 Account registrations are limited per unique person. Transfers of accounts are generally not permitted. Linden Lab may require you to submit an indication of unique identity in the account registration process; e.g. credit card or other payment information, or SMS message code.....etc...