What would be the least annoying?
 

1. getting a mod to let me make a post with 15 images and 1 gif
2. making what would be 1 post with 15 images and 1 gif 4 posts so that I can include all the images
3. editing all the images into a flowchart in Microsoft Excel or something

I'm sorry. I'm a bit of a bother.

I vote option 3.

3 is what I usually do.

Can't be done. The limit is set in the software by the admin, not the mods.

You could do that, so long as there's a good reason for it.

It all depends what you want to post 15 images & 1 gif for.
If it's to illustrate a point you are making or something you want to write about ,that's perfectly fine.
If you're just posting them to be a smart arse, it isn't and will be treated as spamming.

You could do that as well if you wanted, I would say do whatever takes you the least amount of time

Like I said, you've not said WHY you want to post this many images.
Knowing that would help.
No, you're fine ...really :)

Also, just to let you guys know, a request for the image limit to be increased has been passed on to the admin amongst some other things, so if you're patient we may not have to worry about making flowcharts or multiple posts.