Blocklanders hate Roblox because of the horrible graphics, and that it's full of children. Roblox hate Blockland because... we hate them?
I see no reason for the war, but it's still kind of fun. Rivalry is what makes things interesting, spices stuff up. Rivalry is what causes people to 1-Up each other with new game updates which make the playing experiance better. I wouldn't mind if the war ended this very second, but if it didn't, well, I'd still be having fun! Personally, I strongly dislike Roblox. I do not see what is so appealing about it compared to Blockland. But I don't go around sparking fights, now do I?