To somewhat contradict myself here, I understand that linux has become more of a supported OS in recent years, and I have nothing against linux. I personally prefer linux for dedicated server hosting on a low-spec pc and older systems.
To be fair, it would be nice to see a fully-linux compatible Blockland, but the fact remains that many people who run linux for reasonable purposes generally don't use linux for gaming unless they are addicted to some specific game (which probably has a windows version too)
If you ask me, Windows is the best OS you could run Blockland (and many other games) on given the decent hardware (which isn't all that demanding usually, unless running shaders/real-time shadows or intense graphics from *newer* games)