Today, I re-checked to see if the BBBOnline website is still unsecured.
The good news is, the expired SSL Certificate is gone. Instead the online form which asks all kind of confidential business and personal information is completely unsecured (http:// instead of https://).
Apparently they BBB is not willing to invest $50-$200 in a SSL Certificate to secure my data I submit to them. Way to go Better Business Bureau!