Are you saying that stealing others work and placing it in public domain makes the code clean?
Of course not. But if we are talking about Ippolit, it is not a "stolen work of others".
there are many who disagree Richard-
apparently, it matches very closely (exactly), line for line, with a Chesslogik release of RobboLito,
which had the 'world famous' (but meaningless?) FSF GPL license attached.
(it's part of the download and conspicuously included in the header of each source file, so it can't be missed)
but, of course you know this already...,
and i'm sure you have seen all the magical word dancing and pompous denials in face of overwhelming evidence.
so i'm really surprised (and disappointed) to see you defending Houdini, which appears to be anything but an 'original engine',
and which is in fact is
illegal according to the terms of the GPL...
(that is of course only if one thinks the GPL license means anything at all)
(i would have thought you would support such measures to protect against blatant plagiarism)
i remember getting banned from here for 1 year for using GPL source code
(and look, what's happened to Vas?)
then why (or how on earth) is Houdini OK?
because it's strong...he gets an exemption, a free pass?