Mathematical exercises aim to solve 1 problem with 1 given set of parameters
Maybe you just had some really bad teachers, but I couldn’t disagree more. A big part of maths is proving statements that hold very generally (and maybe making it even more abstract, e.g. applying it to anything you can add and multiply instead of just real numbers). It kind of starts when your answers start being formulas instead of numbers but it goes much further
Your instance could (edit: theoretically, if they’re running custom Lemmy code) track you by your browser fingerprint (screen size, installed fonts, plugins, etc.). Others could keep a profile on you based on what you comment/post/upvote and when.
200: Here you go (secretly still an error)