Some users today are noticing that Facebook comments now display illustrated images when users type emoticon symbols.
Emoticons do not work in status updates or other posts, but users and page owners can use them in comments. Depending on a company’s brand voice, emoticons may or may not be appropriate for exchanges with fans on a page, but it’s worth noting they are an option now. There are a number of smileyfaces and animal images available. For example, users can type (y) to create a thumbs-up symbol. A more list of icons and how to make them can be found here.
Previously, emotions were available in chat and messages, but appeared as punctuation or letters and numbers elsewhere around the site. Facebook recently added emoji to its mobile messenger apps, but these are a different set of images that do not seem to be able to be recreated in web chat or comments.