There is forced attribution and the fact that in some countries putting work under the public domain doesn't mean you give up a lot of rights to it. You need to have a specifically liberal licence in order to do that.
At least in Germany, as an artist, the only way to transfer your "Urheberrecht" to somebody else is to die. See §29 of the "Urheberrechtsgesetz" (copyright law) [1]:
"Das Urheberrecht ist nicht übertragbar, es sei denn, es wird in Erfüllung einer Verfügung von Todes wegen oder an Miterben im Wege der Erbauseinandersetzung übertragen."
(Translation: "Copyright is not transferable, unless it is transferred in execution of a testamentary disposition or to coheirs in the way of partition of an estate.")
