a few questions regarding bows

[Ruvanal]

Thus the popularity of "white" rings.

Those hacked items are something else that does not involve the affixes, but rather the straight application of mods onto the item. The affix have level requirements and from one to three mods associated with each. The rings that you are referring to just have the mods directly applied without any of the "burden" of things like level requirements, restricted item type that they are allowed on or minimum required levels to allow them onto the items.