When I have been out in those conditions, ie 30+, if racing with a crew, double reef and a 110, altho I wish I had a 80-90% foretriangle jib for those times, storm is too small....... I have a crew on the main all the time moving it. If I am with one or two others, we move the sail area down until it is comfortable. This has been a single reefed main a few times, still doing upper 4's into 5 knots.
While I would not say do not go out, if you do, think about as many issues as you can ahead of time, how to solve/fix, then if it happens, you have a plan. If something occurs you did not think about, well, as they say, life happens. 30+ can be fun if planned for. THen again, I have not been in an 18 steady with gusts to 43, usually 25-35 with gusts to 40'ish. last night was 12-25 with 15-20 steady. full main and 110 with 24 yr old sons during a race, full crew I could have done a 140 upwind, or at least the down wind leg would have flown te spin or 155 wing on wing.
She drives me boat,
I drives me dinghy!