The chances that you will be "caught" ordering pills from another country are very very slim. The worst that will happen is that you get a letter that says the package is held in customs and if you want it, come pick it up. And of course. . . . you don't.
Most of these pill sites depend upon repeat business and so you are likely not getting counterfeit (bogus) pills depending upon what they are. Valium is most always what it is, there are, after all, legitimate pharmaceutical companies in other countries. India has some fine ones. The prices for these substances are usually many times the prescription price and so they make plenty of money, rarely a need to make even more by selling inauthentic drugs - of course depending on what it is. You may have had a problem if you ordered oxy from some of these places although now it is even more difficult to get because credit card companies were pressured by the FDA or the DEA to withdraw their services. Hydro is still available if you want to pay .75 to a buck a milligram. There is even a legitimate online vendor that sells morphine at surprisingly affordable prices. It is of course a crap shoot, but I rarely lose money at the table and if you are conservative and do your do diligence you too can acquire popular chemicals online.