This is good advice. I just suck it up and wear 1/2 fingered gloves.
Obviously, if you live in Bonaire or other warm, tropical, salty places, your hands eventually get used to it. The Bonaire sailors don't seem to need special treatment or gloves. I think that the salt has a HUGE amount to do with it.
However, here's what to do if this:
happens to your hands.
1. If you get a blister and is HASN'T popped, you have two choices. A. Leave it alone and stop sailing for the rest of your trip. B. If you're gonna sail, it's gonna rip open no matter what you do.
2. Assuming you chose "B", you either need to pop the blister and peel off the flap or if it's already popped, then peel off the flap.
3. If you can, trim the loose skin as close to the edge of the blister as you can. What you are try to accomplish here is to prevent it from getting worse. If you leave the flaps or loose skin, it'll grab on the boom (or something else) and tear deeper. This is waaaay worse than just a rip. You really want to avoid what we used to call "a bleeder". As a former Div 1 athlete and gymnast from age 9 - 26, there are tricks we use to trim the skin back with your bare hands. If you don't know how to do this, use a razor blade, exacto knife, or small sharp scissors. The scissors in a Swiss Army knife are perfect.
4. Once you get it trimmed up, either start wearing gloves or tape it up with some duct tape. Don't use athletic tape: it won't last in the water.
5. Apply chapstick or A&D ointment, or bag balm to your rips and either tape em up or wear gloves like Greg suggested. the gloves are to keep you from getting goop all over your clothes and sheets. I used to do this all the time when I was competing, because as a gymnast, your hands are just CONSTANTLY torn up. No way to avoid it.