Trackers evenly space each data point on the X axis. This makes it not to scale and skews the interpretation of the data.

Here is an example of tracking weight.

If I track my weight constantly but then take a vacation and for a week and don't track it during that week (and in reality, i'm slowly gaining weight. ) When I get back and start updating trackers again, it will show a steep incline make it appear I gain a lot of weight in one day. The X-axis doesn't adjust itself in regards to time. It could be a minute or month and it is still displayed equally spaced.

Thanks!