Bugs like it, it must be good! I had some chunks in my collection of smoking woods and when I moved them around, I found the mulberry riddled with worm holes and burned it up in a camp fire. Since then I've dusted my smoking wood with diatomaceous earth
to discourage insects. It's mostly silica and should be pretty inert in a fire. Keep an eye on yours!
I just picked up some yesterday that someone was giving away.