1) You're being recruited to sign up for cryonics because it makes the recruiters' own cryonics investment a) better and b) less weird. A large population of frozen people encourages more investment than a small number of frozen cranks.

2) Probably to the same extent that people discourage smoking and riding a bike without a helmet - subtly try to make their own safety precautions seem less timid by trying to label those who disregard them as stupid.