Some (possibly dubious) college Q&A web sites (e.g. this one) make the claim that
Bennington has a paltry endowment of $3.5 million, the result of a historical philosophy - now recognized by its own staff as a big mistake - of eschewing donations to maintain academic freedom.
The endowment really is quite low (although now it's up to $40 million), but I can't find any documentation of the claim that they used to decline donations OR that they did so for this reason OR that Bennington College staff recognizes this as a mistake.