The strength of Stack Exchange sites over a mere forum is that they offer expert answers to specific questions, which other experts can rate, giving a clear idea of which the best answers are.
I would argue that such open ended questions as the one you have quoted (see also: this question about learning other languages by means of Esperantothis question about learning other languages by means of Esperanto go against this, invite infinite "Oh, and there's also" comments or answers, which make a nonsense of voting and dilute the value of the Stack Exchange approach.
Such questions belong much better on a general forum like that of lernu.net, where people can add their suggestions at their leisure with no need to determine the "best" answer.
