Yeah, it uses TLS 1.0 (obsolete, I believe), RSA (obsolete) and AES 128-bit with SHA1 (obsolete), according to Chrome.
Thanks for the report!
Re the captcha: yes, that's ugly. I've disabled human verification for searches until there's evidence that spambots are using it to cause issues.
Re encryption settings: I switched the message board to https everywhere last night (part of the plan to migrate to https everywhere on cprogramming.com). As part of that, I also intend to upgrade the cipher suites and supported protocols.