Why are people leaving Gumroad?
Updated
The short answer
Sellers leave Gumroad for four reasons: its pricing model has changed more than once, the storefront gives them little control over branding and checkout, they want closer access to buyer data, and they discover it brings almost no traffic of its own. None of those is a scandal.
They are the ordinary reasons anyone outgrows a starter tool.
Changed pricing is the loudest one
The cost model has moved over the years, and sellers who built their prices around an old structure had to redo the arithmetic.
This is a risk with every platform, not one company. Any percentage you depend on today can be different next year.
Control and branding
The product page and checkout look like the platform, not like you. Sellers with a real brand eventually want their own.
Related: the buyer relationship. Sellers want their list somewhere they own, so a policy change cannot take it.
The one that surprises people
It is a storefront, not a marketplace. It does not send you shoppers, and sellers who joined expecting discovery leave disappointed.
If that is your complaint, the answer is a marketplace or your own audience, not a different storefront with the same shape.