Not I. But my stash is a modest one, thinFIRE by some standards, arguably one step away from ERE.
My income (roughly 23k according to me, 14k to 20k gross per IRS) is definitely lower than my average from work (maybe 35k average after tax, depending on calculation details, and inflation adjusted); it's far lower than peak income from work (about 45k after tax, maybe 51k inflation adjusted. I'm about 7 years in). Also, stash is not mostly stock, over half is real estate equity. My house has rocketed in value but that has created little to no income.
And as Marty998 pointed out, most of the stocks i do have are in retirement accounts (IRAs, a 401k). Even selling a stock there to realize a gain produces no income for me.
Longer term, I figure if my spending is "safe" (stable) during down markets (I don't have to cut spending), it also should be stable in "up" markets. So I don't view myself as having a changed situation, really. Plus, since my wiggle room is low, I'd just view any sustained gains as safety layer.
Looking forward to the other replies though. Time to live vicariously. Maybe the bigger incomes will inspire me to un-retire! :)
In any case it's good for people to see ER is safe. Congrats on the exciting results.