It looks like this post contains a shortened URL (https://buff.ly/2HcLg0v). Here is my preview of the domain:

https://gleam.io

.
_{Now checking it against my database of known compromised or unsafe domains.. you'll see another reply if it's in there.} If not, it's likely safe to open.

More info on this service here.
For more information about risks involved in shortened URLs, read this article by Forbes.
_{This auto-reply is self-voted to be more visible among others. {average of post/comments with Shortened links I found per hour: 26.1}}.

This auto-reply (on posts) is throttled 1/10 to reduce spam but if it still bothers you reply "OFF FURL" _{(I'll still check previews against my database)}. In alternative reply REVIEW for manual review and whitelisting.

ubongj