"Mini job"-ness and task forwarding are not really the right criteria for evaluating content suitability. We humans are a curious bunch. Voluntarily solve sudoku or crosswords. But then, complain when the solution is of actual use to somebody... There are monks in this monastery who gleefully accept any mini-challenge to cook up another obscure regex. And it's okay.

The right criteria are (dis)honesty and (ab)use. Often, the only missing piece is attribution to source, or, statement about intended application. These might be interesting and worthy problems still. So basically, the usual academic integrity rules.