Alot of people set up companies to buy and trade stocks because...

Alot of people set up companies to buy and trade stocks because of the favourable 30% tax bracket but the trade off is that there is no CGT exemptions when the asset is sold and you have additional accounting costs (which are tax deductible). You may also be able to use the company/trust structure to distribute income to someone who is on a lower tax threshold.
You also don't need to set up a SMSF to buy direct stocks via super, this is something an accountant will have you believe because accountants can charge accounting fees on a self managed super fund. Alot of wrap based super account offer exceptional choice when it comes to direct stock and investment selection at a very lower price. In super, the returns are taxed at 15% which might help with franking credit returns (PLS doesn't pay divi's yet though) and if you hold the stock for over 12 months then you only pay 33% tax on the assets capital return. The issue is that your money is tied up in super until you meet a condition of release.
Tax isn't the worst thing, it means you have made money.