Perhaps the most telling thing is that Weber himself apparently refuses to do anything to answer his critics. Supporters would have you believe he's chosen not to be open because of the harsh treatment he (deservedly) gets and is crafting some sort of big plan behind the scenes to catapult Bebevco into the stratosphere when all his past PRs magically come true.
However, anyone who has been paying attention can see that he simply fails at even simple things like keeping up with paperwork or keeping his trademarks registered. These are not the actions of a visionary marketing genius with a grand plan, they are the actions of someone who really doesn't pay a lot of attention to the company he heads up.
If Weber wants to go racing on his own time, it's really his business and he can't be faulted for it. But selling shares in a drink company on the supposition that he will be working diligently in the shareholder's best interest and then failing to complete even the simple support tasks completely within his control show his efforts and attention are not with his publicly held drink company. That alone is a valid reason for shareholders to be angry. No apparent effort or results to show for the shares sold and an unwillingness to provide even an accurate accounting.