> I would like an opinion about transfer of assets from 501(c)x to a corporation though

Most 501c entities are corporations.

You probably mean “to a business entity that is not itself a 501c”, but generally a 501c is free to sell assets to other entities without regard to form or (absence of) nonprofit status, though there are other restrictions that might come into play.

people here do not understand that a for-profit company seeks to avoid or minimize tax, and that simple flipping of (appreciating) assets from a non-profit and back could be used extensively to avoid tax ? and that the IRS specifically precludes that, in the articles of non-profit incorporation? not "selling t-shirts or anything else in line with the mission" but held assets? there is some term I am missing, and I think Commonwealth countries are also taking turns here.. there is too much distance in the points of view .. there have to be some assumptions unsaid