Do you mean to post image in Chat as in your Chat box in your booth?

To post an item in the Chat box in your booth, you need to get the item number (which is at the end of the URL or at the bottom of the listing) and click on the link that says Paste Item under chat window. This used to post the picture in the Chat box, but now it only posts the link to the item. We can no longer post pictures in the chat box. You cannot post an item from someone else’s booth in your booth Chat Box using this method.

Or do you mean “posting pictures” in the forums

In forums, it is the same method for photos no matter where the images are located.

Get the URL of the image (Depending on the browser you are using)
Right Click on the image and select the option that says Copy image URL (or Copy image, etc)

Go to where you want to put the image

Either use Right Click Paste or Control+V between exclamation points (!)

This is the URL of your avatar (I right clicked and selected Copy image URL)

[URL removed]

now placed between ! URL !

(Remove the spaces between the URL and the exclamation points)

![URL removed]

If an item is in your [URL removed]
Right click (Windows) or Control click (Mac) on the THUMBNAIL. Click on “Open Image in New Window”. Copy that web address and paste it. Place an exclamation point directly before it and after it (no spaces). Also make sure there is not any other punctuation before it. Here is an example

! [URL removed] !

If a photo is on the web, you can post it the same way. If it is not on the web, you will need to upload using one of the imaging sites, such as photobucket.com, pinterest.com, etc.

If you want it clickable, click on the item in your booth, copy the web address. Directly after the thumbnail address (above), type a colon : and paste the item address.

1st its hard buy when you read all the helps from the community forum’s you sure will get the right answer.
Copy the URL and paste it on the forum then add ! on the 1st and last part of the URL you posted. have a blessed day everyone!