I wish this article talked about some of the reasons you may not want to do this instead of just selling the strategy. For example, this doesn't look appealing

I wish this article talked about some of the reasons you may not want to do this instead of just selling the strategy. For example, this doesn't look appealing to me because it adds complexity and makes your codebase harder to work with. It's a neat hack, but I think in reality there would be very few cases where this would be a good idea.