I highly recommend that if you support experimentation you join and donate -- I have a MetaARPA account that I don't think I've logged into in 3 years, but I ju

I highly recommend that if you support experimentation you join and donate -- I have a MetaARPA account that I don't think I've logged into in 3 years, but I just send them a $36 check every year because I think it's important people be able to have a safe, free place to tinker. (Also, if you want to sign up, I can validate your account. Email me a link to your HN profile and if you have enough contributions to convince me you're an okay person, I'll take care of it.)