Could be true, but can't possibly be true for everyone. Some people have much higher tolerances for certain things. Some people look at poison ivy and break out, others like me can use it as toilet paper, no problem...other than it doesn't get you too clean of course. DAMHIKT !
I have gotten lots of slivers from Wenge. It's one of those woods that likes to poke you. I don't get big blisters or any issues right away, but every time I do get a sliver from Wenge, it gets a small infection after about a day. Other woods, like a sliver from plywood or maple..rarely ever an issue..pull out the sliver, heals in a day or two.