We've had 963 views and 87 downloads of the component. So far, so good, considering it has been up for just a day. In addition, I received comments and feedback from two people: one that complained the frontend didn't work (I am trying to resolve the issue), and one that wanted to extend the component to do more things than just track weight.
I sent the first one screenshots of the interface, the second one hints as to what needs to be done, and now I am thinking: gosh, shouldn't I post those screenshots? Shouldn't I add an FAQ or something?
Let's see how things develop. For now, here the screenshots:
Weight component – edit screen
Weight component – data input