I like your idea about having subcategories in the My Effects category.
You can now rename the result windows in the bottom image work area... just click on the little pencil icon and add some kind of ID info.
Also in AI as with other adjustments, if you really like and preset adjustment you made, you can select the first icon next to the_Preset_ default/custom and save your preferred preset to that Drop down menu.
This may not be the answers to your problem but it's an option for now?
I have not experienced any crashes on my Mac when scrolling thru the effects?