How do you include screenshots in forum posts?

I use Tumblr, simply because I already use Tumblr to keep an eye out for new CC from some of my favorite creators and so I already have an account there and login to it all the time anyway.
As far as I know there isn't even a limit on how much you can upload there on a free account.

Imgur also works great (and doesn't even require you to have an account or login to use it for image hosting.

Another great hosting service is postimages.org, which makes it super easy to get the bb code for posting the images here. If I wasn't already using Tumblr with an account there, it's probably what I would use.

I use Imgur, it mostly works.

I also use Imgur now, it's been easy enough to use.

I use imgbb.

I use imjur. I, too, was a Photobucket user, which suddenly demanded money, so I grabbed as many of my older photos for safe-keeping and searched the 'Net for another place. I really like imjur. So far, I've got thousands of pictures and so far nobody is pressuring me to start paying them.

Imgur is great. You don't have to even create an account, just click "new post" and choose a photo (screenshot) from your computer and once it's downloaded copy link (BBCode) here. :)

Flickr has bb code that can be copied and pasted. It does require a subscription for unlimited pictures.

Imgur user here too. I'm perfectly happy with it so far.

I use Imgur its very easy to use