If you're going to do that, will you also warn them not to deal with essentially every other country in the world?  With the exception of a few (China, the UAE, Brazil, and Nigeria come to mind), nearly every other country's securities laws are modeled significantly after the US system.

Edit:  Similarly, AML compliance (while less likely to track the US scheme) is also detailed and complex in nearly every country, the impact of FATF and related FSABs worldwide on national policies has been far reaching.  Singling out the US as if it's laws are somehow uniquely onerous is just idiotic and demonstrates complete ignorance about the international environment for investment and AML compliance regulation.