I have a question with 1508 views, but in the personal page list it gets reported as 2k. Bug or aggressive approximation?
It's not a bug, this is by design. When you reach 1000 views, the view count is rounded up or down to the nearest thousand. This is why your view count of 1508 is rounded up to 2k.
You will find that the system will round other values as well - reputations over 10k, for example, are rounded to the nearest hundred.