A couple weeks ago we made a change that accidentally awarded the Nicola's Takeover trophy to users who did not participate in that quest. We caught the bug within a few days and fixed it, but not before a bunch of trophies had been given out. This morning we took back the trophies that were mistakenly awarded, and apologize for the confusion.
The trophy was given to users who helped Nicola take over the lab from her boss back in 2016. You can read more about it on the Wajas Wiki.