That's exactly my point here... "Make a sin to farm".. I want to focus on my main character.. And i don't want to spend another month of time to get another character to level 150 just for farming..i'd rather farm at an equal speed on my main character that i actually do things with..
so, because you don't want to farm with a sin because you're too busy on another character you think others should suffer? seems selfish to me.also, you don't need to max your sin for it to be able to solo the boss. :/