No, not all shareholders were warned CRGP was a scam. Ihub is not universal. Many shareholders probably don't even know it exists. Whoever placed due bills onto the shares sold by COR should be the ones held responsible. That is where the error/glitch occurred and where it should be resolved. Taking pleasure in the possible damage that shareholders may have to endure through no fault of their own is wrong and sickening.
Then the shareholder should sue TDA for giving bad advice.
That won't work either. TDA's front line desk giving out good or bad information or answers to ad hoc questions, TDA classifies as a "Service". The only "Service" TDA takes responsibility for is if you ask them through their Amervest division for tailored account investing advice. Where they advise you to invest in specific funds or stocks. Needless to say microcrap scam stocks would be off the menu.
Otherwise the "Service" they provide their clients, and the liability to TDA (i.e. next to none) is spelled out in the TDA-client agreement form. Investment decisions are the client's responsibility. Including whether or not to spend a potential illegal divy issued by a microcrap stock.