"Witches brooms" on hackberry trees are caused by a combination of a mite and a fungus. Your hackberry doesnt appear to be infected.
If it is hackberry, it is good wood for turning. Hackberry spalts very easily which can be pretty in a turning. Probably not worth much as lumber.
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When failure is not an option
Mediocre is assured.
I cut and dried some hackberry lumber. I use it where most people use poplar.
Most of mine developed blue-grey spots while drying. Some kind of fungus that is common on drying hackberry. I got most of it off when I planed the lumber after it dried.