Once I mixed it too strong and I had a "fuzzy" hands for a few days.I also use the thick blue "chemical safe" gloves that go up to mid forearm (I got them at HD--I can't remember if they're PVC, or Nitrile, or what) to prevent skin exposure during the equipment dunking and transfer process.
You really think the stuff (at proper ratio) is that bad? I can see with iodophor (fake tan /jk) but I'm surprised with starsan. I figure if I dip a finger in the wort or starter then it's no biggie - I've been sanitized.
If I would be dipping my hands in StarSan for extended period of time I would also use gloves.
Different people might react differently to it.