Yes, it's a valid concern. However, the topic has been discussed on this board ad nauseum. So when people keep bringing it up it just starts to get annoying. When you bring it up as your first post, people just assume you are here to bash the stock.
So, welcome to the board. Now, spend lots of time going back and reading through it. There's a wealth of info here. Check out the stickys at the top if you haven't already.
Fyi, if you pay for a subscription, you can search the board, rather than reading post by post. You can also view 10 posts at a time.