Well, because of that other topic (you know the one I'm talking about), I got to thinking what would be and what wouldn't be retro-posting. The example I posted was similar to as follows.
Ninja1 tosses two small, bladed disks at his opponent.
Ninja2 dodges the disks.
Ninja1: As the disks miss the opponent and get lodged in the tree behind him, they let out a quick beep before exploding. They weren't just regular bladed disks, they were also proximity mines packed with explosives.
Now, would that be considered retro-posting? Would it be wrong to post that disks embedded themselves in the trees? I know it would be if you were fighting in a desert plain, but if you were in a wooded area is it wrong to say there'd be a tree there? Because I think that a lot of people here pay attention to the little details of the posts, but forget about the settings and world around them. There's also a problem when it comes to hand-to-hand, but that's another topic lol
Here's another personal example, broken down to the key points.
Ninja1 created a cloud to hide himself in.
Becquerel dove into the cloud with intention to jump right through it and hopefully tackle his opponent.
Ninja1: The cloud was actually full of iron flakes that were imbued in a magnetic jutsu that would cause any subsequent jutsu to be unavoidable by Becquerel.
I had no problem with that at all, honestly. I expected the cloud to not to just be a cloud, but took that risk. And the RP was able to continue happily without issue. That's just a personal example.
What's the point of being a sneaky ninja if you tell your opponent everything you're going to do? If you post that you're throwing bombs (even though they're disguised), then that just means that you opponent WILL dodge accordingly instead of just possibly dodging in the least effort possible. If you lay all your plans out on a platter for the opponent, then shouldn't whoever posts first be the pre-determined loser if that were the case?
I just want to have a nice discussion on what is or isn't considered retro-posting. Please, no mud-slinging even if someone brings up an example involving you. And if you bring up examples, don't name names. That's just instigating trouble.