@Jener I wouldn’t jump the gun regarding Epic Games marketplace policies and all of this is pretty new ground for them so things are always evolving 
With that being said,
Bandwidth & servers aren’t really a problem for us however by being able to distribute our content directly through the Epic Games Launcher we would reach a much larger audience of developers who might otherwise not know about our FREE! Asset Crates if we were to just distribute them solely through our own website and/or servers + torrents/other.
Moreover,
Even with that aside we’ll still need to make sure that we abide by the UE4 Marketplace EULA as any potential revenue we might receive through Patreon.com might very well be a significant conflict of interests due advertising it as FREE! on the UE4 Marketplace but profiting from each release elsewhere.
I assume this is due to the revenue spilt agreement for the UE4 Marketplace being different to the general 5% revenue cut if you were to say release a game or similar product.
Source: https://www.unrealengine.com/marketplace/marketplace-business-terms-faq
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Anyway I will leave it at that until I have further information and/or one of Epic Games staff e.g. Johns or Chance Ivey can shed some light on the potential conflicts between the UE4 Marketplace EULA and this proposed community focused initiative powered by Patreon.com