Please do “loose” option in ExtrudeCrvTapered and ExtrudeSrfTapered.
I think that many people would be happy with that feature. Not only me
It would produce cleaner results after those operations which could be helpful for example during car bumper creation when size could increase drastically because of the heavy geometry produced by that. Doing that manually is time consuming. Scripting is possible to omit that ( ExtrudeCrvTapered / ExtrudeSrfTapered and single span - #2 by maje90 ) but IMO it should be done by default.