Those are all very good points, thank you. I strongly agree with all of that, with the exception of:
The usual tactics should work: "I know it's weird but I have an online friend who's definitely signing up, and when we discussed his/her motivations they seemed actually quite reasonable, I'm thinking about it a lot".
I don't know how effective this really is, but I'm skeptical of this approach because "I read it on the Internet" is generally not a good arguing tactic.
Delete the word "online", then.
Over the past few months I've been doing a lot of reading about cryonics, and though I agree with the arguments of Eliezer Yudkowsky and Robin Hanson on the issue, I still feel uncomfortable about actually signing up. Upon reflection, my true rejection is my fear of the social cost of cryonics, i.e. being perceived as weird and completely incomprehensible by everyone around me. I've read the "Hostile Wife Phenomenon" article on Depressed Metabolism, the New York Times Magazine article on Robin Hanson's personal situation (as well as Robin's reply), and scores of comments on LessWrong, and it looks a lot of cryonicists do indeed experience the feeling that Eliezer describes in Lonely Dissent.
My concerns about the social cost of cryonics can be broken down into two categories:
Overall, though, I have very little information about what the social cost of cryonics really is beyond a few scattered anecdotes and secondhand descriptions of cryonicists' lives. Ultimately, I don't really know how many of my fears would actually be realized if I signed up. This makes it difficult to for me to make a decision, as I am very risk-averse and I feel reluctant to choose something that could potentially make the next six or seven decades of my life miserable. As a result, I have decided to engage in some data collection.
To do so, I would like to hear about your experiences. If you are currently signed up for cryonics, I would very much appreciate it if you took a minute or two to describe the effects that signing up has had on your relationships and your social life in general. If you are not signed up, your feedback on this topic is still welcome. Links to articles would be good, but discussion of personal experiences would be better.