しんぱいしないでください。いつも何も言わなくてもいいです。それから、他人は話を続けてもいいですね。何もスレを始めた人のせいではありません。ボスではないのですね。
There's no need to announce that you're not continuing. You can respond or not respond to messages as you wish; you don't gain any obligations simply because you started a thread. Please be at ease and don't worry about what others are doing. :)
