Many people dont update after 1.8.9 anymore simply due to a lot of servers becoming incompatible plugin wise. This is because they made a very small change that affected a lot of things... They decided to change the sound ENUMS in the 1.9 version and many authors for some reason haven't updated those enums or found their way around this. Also another thing is that NMS always requires different version for each plugin and this also causes authors to not update for some reason... So yeah... idk why mojang or spigot hasnt take this into consideration but anyways. Also there are a lot more reasons I can think of but yeah this is plugin wise why many people stick to the older versions
@Terasal this isn't really the place to talk about ban appeals, but I'll let it slide. A lot of people have appealed, so it takes awhile to read them all. Jump on the TeamSpeak (ts.blockmania.com) one time and we'll talk about it there.