in skyblock and sky grid you can't enter the nether in sky grid yes but flint in steal does not work i think this has to be fixed because it would really make these servers funnier and they would have more players that is all
Implementing the nether on skyblock would make that gamemode lag. Plus, hellblock is basically the nether version of skyblock.
There is a way to get to the nether on Skygrid. Use a dispenser to fire/release/eject the flint & Steal.
There already is Nether in skygrid, just do what omie said And adding Nether to skyblock would just make it like Hellblock EDIT: Grave dig :L