ELI5: What's the Significance of GameCraftLounge's Weekly Theme Challenges?​

So, I've been seeing GameCraftLounge's weekly theme challenges popping up, and I'm curious about their actual meaning. ELI5 – why should someone care about participating, or even following along? Is it just for fun, or is there something more considerable to it?

I'm wondering if it's a good way for aspiring game devs to build a portfolio quickly by forcing them to complete small projects regularly.Or maybe it's a valuable learning exercise, pushing peopel to explore different genres, game mechanics, or development techniques outside their comfort zone. Does it actually impact discoverability for the games created, perhaps through exposure to a wider audience?

Basically, what's the real value proposition? Are they something worth paying attention to if you're interested in game development, or are they more of a novelty? Looking for insights from people who've participated or followed the challenges closely, or just folks with a good understanding of the game dev community.