In this context, Regulation D applies to the companies raising money through a private offering. Companies that want to avail themselves of general solicitation will need to take additional steps to be in compliance with the law. This includes filing a Form D 15 days prior to the first use of general solicitation and ensuring that written solicitation contains certain information and disclaimers.
If you're insinuating that private individuals are going to rush to refer to companies to FundersClub and then publicly solicit investments in those companies (i.e. through email blasts, advertisements, blog posts, etc.) in the hopes that they'll one day get a piece of FundersClub's carried interest (if there ever is any) as a result of the JOBS Act, you're going too far. That is not what the revisions to Regulation D are about and anybody who has that in mind would probably be well-advised to speak with an attorney.