I have written and spoken many times about the risk of the data collected on our behalf at some time in the future being combined in ways that we don’t know about, can do nothing about, but affect our ability to do things. This could be databases that in themselves at the time don’t appear contentious, but when combined in the future are perceived to have meaning that couldn’t be anticipated.
I have just had a small taste of this. For some completely unknown reason Google suspended my YouTube account – and I genuinely can’t think of, or imagine, what might have triggered this. (Since reinstated with no explanation). Thankfully it wasn’t an issue as I stopped trusting Google years ago and don’t use any of their products other than YouTube. However, if I did rely on their services, having them suddenly withdrawn without an apparent reason could cause considerable difficulty.
As it is the impact was minimal, other than reinforcing my instincts not to touch Google with a bargepole.