In order to receive a code for a Mad Love Loot Matrix you simply need to make a contribution to the wiki! Types of things to look for:
1. See an actual error on a Freelancer's page? Fix it!
2. See an article that needs contributions? Add something! (a list of short pages can be found here: http://atlas-reactor.wikia.com/wiki/Special:ShortPages, but note that some pages are fine being short :)).
3. Add some photos to articles to clarify the meaning
I have ~20 matrices to giveaway so get to editing and comment here when you are done so others can see what has been done :D. I can send you the code directly through your Fandom account or via Reddit/Discord if you post your user name.
Thanks in advance!