Plus real domainers have to pay income tax, in Canada there goes another 50% unless you have enough expenses to offset the income.
A tip here.... Renew your domains for 10 years to create an expense to offset the income.
Then when you sell a few, relocate to the Bahamas.
PPS. I hear there there is a platform charging up to 30 percent, I have to dig back to find out who that is.