> Smile 3.x is GPL-licensed, which poses some potential conflicts for some end users...The community consensus is converging around moving away from Smile due to the GPL-relicensing issue, focusing instead on Tribuo...
(tribuo is developed by oracle)
It's a really great thing that the java community has a high performance and well accepted (~5x stars than tribuo) ML package that's GPL. CF python where the top two libraries are developed by google and facebook. The GPL protects individual, independent developers.
I don't think it's right to recommend that new users move away from the package because of licensing issues; the fact that it's GPL now is a good thing for everyone except corporate users (probably a great part of readers). The people who might have GPL problems already know themselves when they'll have a problem.