This comment reads like someone why follows the overarching lore and less the books and the like, which is honestly a very fair take from that perspective.

I think the books do a good job of setting up interesting characters. The issue is that the major players in the Universe are typically not allowed to have any major development in order to move the universe forward for the game. These characters constantly make bad choices . It's a TTG first and foremost and they need a reason for there to be a universe ending threat coming form chaos for that next edition, and they need the Space Marines to save the day last minute to keep the story going.

This means the overarching storyline and the main drivers of the plot tends to be extremely basic as they only exist to move the world forward for the next edition. It's usually the books exploring underdeveloped characters, or the history of the main players, that do some decent development.

Warhammer is a massive series with some outstanding worldbuilding. Everything is over the top sure, but a lot of authors do a great job of capturing what it would be like to live in said universe (and usually why it's terrible)

As a note, a lot of authors have had their hands on the series which can cause some of the overarching lore to get a bit muddy every once in a while, and quality can be hit or miss. But it's still a lot of fun, theres a reason why theres a large fanbase for Warhammer despite arguably most not actually playing warhammer.

This paragraph makes me think you don’t actually know what the space force does

Other way around. Having all military branches in a single organization would be a nightmare and inefficient to properly manage. Splitting groups off when they get big enough aids in organization and makes sense both from a management and financial level

No they couldn’t, they do very different things.

The space force has effectively existed for decades now under the air force, operating our military satellites, gps, as well as identifying potential threats. NASA doesn’t do all that, they are more about space research and travel.

All that happened is the groups working on this got big enough to warrant them getting their own branch.

Imposter syndrome sucks. You often only see people at their best, or the mask they wear to make it seem like they have it all together. Meanwhile you are painfully aware of all your faults, how much you’re faking, how difficult it’s is to keep it from falling apart. And you feel like a fake, and worry people might figure it out.

Truth is, a lot of people often feel this way, in fact it may be less common to not suffer from imposter syndrome. So don’t feel like you are alone, or don’t belong, because you do more than you know.