This is a link to the pictures of the nutmegs.
https://www.reddit.com/u/big_st3ppa/s/xx5mvqMzq5
It kind of looks like the bug holes I've seen before in alot of nutmegs. Have bugs exited these nutmegs and is that a problem if I was to use it for incense? I plan to ground them and boil them, but tbh they're very weak in smell. I think they're pretty old.
It looks like the shell is still on. If so, break it open to see if the nutmeg inside is fine.
That looks like the shell. As the previous person said crack it open and see for sure.