Spamming a thread, isn't the same as spamming a persons profile post, you may not want to keep on doing that for threads. Just saying
But if you want to do that, you still need to hit the required 50 character minimum. One-word posts or one-liners less than 50 characters won't give you nuffies.
Ai-chan has OCD. If Ai-chan has that many notifications everyday, Ai-chan would probably track down each one of them and murder them one by one so that they'd keep quiet.