First off, VNDM is just a market maker who is doing what a client asks him to do, and at this time it's selling shares that their client owns. We know the company isn't diluting, so we can check that off the list of worries. We also know the company isn't losing money, so we can check that off the list of worries. VNDM's client is either someone with a lot of shares to sell holding from much lower levels OR VNDM's client is selling off the remaining 200 million shares left over from the reverse merger (which was fully disclosed) OR VNDM's client is severely shorting TDGI (to their own eventual detriment). That's the realm of possibilities here.
As far as pissing people off, I think it's more the impatience of people not seeing the company trading at what we know to be at least book value. Many of us have been here since Hannover took over and have been waiting for the price to rise to a reasonable level. But since you state you are holding long term, you have nothing to worry about. The fundamentals of the company are stronger than they've ever been. There is a TON of relevant information about to break on all fronts with this company. If you really are holding long term, then this is what you need to focus on and not on the day to day fluctuations or what market maker is doing what at any given time. Time has a way of fixing these things. And in this one, ONLY the patient will be rewarded. This is not any of the "momo" plays you find here on iHub. This is a stock destined for bigger and better things. Those bigger and better things take a while to lay a solid foundation, one block at a time. Its day will come, don't lose heart.