I found this odd since Rand had commented that people who are forced to fund government programs are NOT immoral for taking the benefits for which they paid. For instance, it is not wrong for people to attend government schools, which are funded with their tax monies, whether they like it or not. They have to start with a false premise: that Rand said receiving Social Security, that one is forced to pay for, was wrong. Without that false claim they have no charge of hypocrisy. They pretend she took a position she never took and then accuse her of violating the position she didn't take.
in 1966 Rand's Objectivist Newsletter said that not collecting from programs that one is forced to finance would be wrong. It said:
...the victims, who opposed such laws, have a clear right to any refund of their own money—and they would not advance the cause of freedom if they left their money unclaimed, for the benefit of the welfare-state administration.