I think you can ask @jaspervdj to give you more permissions.
Edit: I remember now, in the comment here he said he granted a higher trust level to working group members, maybe the same can be done for you. But otherwise you can just move up in the trust hierarchy by interacting with discourse. Here is an overview of the trust levels: Understanding Discourse Trust Levels. So I think you can already post many links when you’ve reached level 1, which just requires 10 minutes of reading at least 5 different topics and 30 posts in total.