Comment by malux85

Ideas are a dime a dozen.

Of that enormous set of potential is a much smaller set that satisfies the criteria:

- Is small enough to be done in spare time by a single developer - Is not so complex it can be automated to run mostly by itself - Is a service someone is willing to pay for - Has real customers

^ those filter criteria make the set of “profitable side projects” much smaller than the set of “dime a dozen” ideas

Profitable side projects have a low barrier to entry and are much more easily exploitable / copyable, hence my reluctance to share and probably many others reluctance to share