For posting images I like to use postimg.org/

You can create an account there if you'd like, then you'll be able to create your galleries and keep track of what you've already shared.

Of course you don't have to.

Uploading is pretty straight forward, but I don't know how advanced you are, so I'll describe the process in great detail.

1.Click the "Browse" button, select all the images you want to share, and click "Open"

(if you don't know how to select multiple files, see this: windows.microsoft.com/en-us/windows/select-multiple-files-folders#1TC=windows-7 )

2.Tick either "Adult content" or "Family safe", depends on what you're sharing.

3.Click "Upload it!"

After your files have finished uploading, you will see thumbnails of your uploaded photos.

4.Scroll down to the bottom of the page, you will reach a table with links and 3 menus to the right

5.Click the 2nd clickable menu and select "Direct link"

6.Click the "Copy to clipboard" button

And you're ready to post on the forum, simply paste your links into the message portion.