Can't create threads with links in them

Hi guys, I'm trying to create a thread in the 'Made With Unity' section as my first post, and wanted to include a link to my app in the play store, but I can't seem to create the post. I keep getting the error message 'Your content can not be submitted. This is likely because your content is spam-like or contains inappropriate elements'.

I'm not really sure what to do here, can anybody help out?

 

You don't get to put a link in your first couple of posts - this is apparently to prevent spam.

@aliceingameland, would it be possible to fix the error message to say that, so we don't get one thread a day from new users complaining that their post is getting rejected?