Me
- Character limits: if I think OP exceeds the limit, I will make some reserved posts
- I use Reserved posts when I feel that I will have more updates for my topics. Those updates will be supplementary for OPs. Sometimes I have clear plans that how many posts I will made to support OPs. Sometimes, I don't have clear plan, just know I will have a few more updates.
- Reserved posts will prevent unexpected breaks between OP and my updates if someone join my threads and leave replies.
- Of course, if don't have update at the ends, those reserved posts should be deleted. Honestly, I never mind to do it (my bad).
The others might have other reasons but theirs will have some common reasons with me (not all, certainly).
Cons
- I see some people use Reserved when they apply in signature campaigns that is not necessary. In my opinion, they can post the dummy application post (without detail) and edit it with details later. Most of campaigns as I know not "First come, first serve" campaign so they don't have to hurry with Reserved posts.
- Some spammers have their creative post style: Make reserved posts to get enough post quota before the deadline. They will return to edit their Reserved posts to shitposts.
Posting reserve? (genius shitposters)