Feed anything non-boosted, rest can be acquired with less headache than owning all of those causes you I reckon.
I go back and forth on that. At one point, I had a full set of Borderlands stuff on three different accounts. Never used it. Finally converted it all into Sentient Experience. A couple years after that, some new Epic characters needed equipment. After a couple months running Epic Borderlands quests, often using full teams, I could not complete equipment for a single character.
When throwing away all the Borderlands stuff, I also threw away almost all my Artifacts because they never fit. I decided my melee and ranged characters would use the Key of Rhukaan Draal. To this day, I have one Key on a character that cannot use it.
Most of my Dinosaur Bone Artifacts came from the Loot Pinata. A fair number have a Mythic bonus. As craft items, they fit very easily into equipment sets. Given my experiences and needs, I am extremely reluctant to give them up.
To this day, I only have one character with an equipped Artifact. Four more have the Artifact waiting but other problems are holding things up.
I should also clarify that, while my characters have a huge amount of potential storage capacity, excluding slots from luxury purchases, affording that capacity remains painful. That leads to the creation of new characters. Storage characters take a huge amount of time away from my Avatar. My Avatar improves painfully slowly.
In hindsight, the expense of storage, the poor performance of storage, probably caused me more collateral problems and time lost, by a massive margin, than any other artificial impediment in DDO.
(Writing posts in these forums is another huge time waster. Haha!)