There have been some questions about posting photos here. The easiest way is to use the Add File button that appears below the text area containing your post text. Click the Add File button and a dialog box will appear that will let you choose the file (photo) you want to upload from your computer hard drive. Once the file is selected, click the Open button in that dialog. Then position your cursor in your post where you want the photo to appear and hit the Insert button.
Presto, your photo is in your post.
You can also link to photos you've posted elsewhere by clicking the Image Link icon in the Boardcode menu above the post textarea. It looks like a little computer monitor screen with a couple of chain links below it. Position your cursor where you want the photo to appear, click the Image Link icon, paste in the URL of the photo you want to show, and presto!
You can even use the size box that appears when you click the Image Link icon to make the photo smaller if you want:
The number you enter into the size box appears to be the number of pixels for the largest dimension. Trying something like 50x20 doesn't work.
In the forum, maximum image file size is 350kb, 1200 pixels x 1200 pixels.