Avoid asking: I'm trying to do X as seen on site Y. How do I do it?

Question

On Stackoverflow, I often come across questions of the type:

I'm trying to do X as seen on site Y.
How do I do it?

Could this type of reverse engineering question be added to What types of questions should I avoid asking?

It seems that they come up often enough and get voted-down/closed enough to warrant a warning in the help center.

For example:

• https://stackoverflow.com/q/17036209/1947286
• Transitions between pages with refresh
• https://stackoverflow.com/questions/16914729/how-to-make-image-map-popup-with-jquery

Related: How to handle "How do they do that" type of questions