The humor is in the title "Welcome to Reddit. Where a community about your favorite things is waiting for you" and the first post (bottom of image) "Who abandoned their core audience and paid the price for it?", since Reddit kind of was the first thing (the front page of the internet) and then did the second.
I get the impression that Kirk is not staying in this series. Or if he does likely not on the Enterprise for long.
In the latest episode he mentioned being a person who doesn’t stay in one place for long. Also, mentioning the pregnancy to La’an has me thinking he’s there on the Enterprise to help but not to stay.
I think these are hints that he may pop in on a few occasions but not a fixture.
The top picture is a car wheel with far too many wheel weights. The bottom is a large amount of wheel weights. They're used to balance wheels which helps make the ride smooth.