I doubt it. Signing up for a lottery for cryonics is still suspicious. There is only one payoff, and that is of the suspicious thing. No one objects to the end of lotteries because we all like money, what is objected to is the lottery as efficient means of obtaining money (or entertainment).
Suppose that the object were something you and I regard with equal revulsion as many regard cryonics. Child molestation, perhaps. Would you really regard someone buying a ticket as not being quite evil and condoning and supporting the eventual rape?
Rather than using an undiluted negative as an example, suppose that there was something more arguable, that might have some positive aspects - sex segregation of schools, for example.
Assuming that my overall judgement of sex segregation is negative, if someone pursued sex segregation fiercely and dedicatedly, then my overall negative valuation of their goal would color my judgement of them. If they can plausibly claim to have supported it momentarily on a whim, while thinking about the positive aspects, then there is some insulation between my judgement of the goal and my judgement of the person.
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