That’s great! For LinkedIn I would probably use the OCD community and share your hive post on LinkedIn of course but if you use twitter, share it on there with the tag #posh in twitter and LinkedIn as well as one of your post tags on here that includes posh. If you check out my recent posts you can see an example of what I mean. It links the hive post with the other platforms so more people outside of hive can see it and potentially sign up here.
Some of the biggest accounts here on hive will try to support people who post things on other platforms since you are trying to spread the knowledge of what we like to more people. It’s not guaranteed support but they try to promote it as much as we can.