These things are only about 4 GeV (4 times heavier than a proton, much lighter than the Higgs boson, much smaller than the energies in the LHC, an extremely easy energy for cosmic rays to reach). Neither energy nor density are keeping us safe if these things are dangerous - the LHC just detected them by making lots of them and having really good sensitivity.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.