Well, this is a issue about "the content manager" and clearly not the "custom content" itself [yesnod]
But yes, we need a platform that allow to :
- Rate the content (with a "thumbs" or "star" system to put the ugly content at the end)
- Moderate the content ("X" click on "Inappropriate" or "Does not work" = content removed)
We have already discussed this problem.
The solution found is :
- indicate that park contains custom content (with a small icon for exemple)
- download of custom content in a dedicated part of the disk during the "loading"
Yes this is very interesting, and a good point. But I supposed, the content creator need a good, step by step or guide for create custom senary. Optimization (quads or tris) polycount, texture format support, alpha for opacity, and others similar technicals details. When all creators respect some rules, the download, install and other terms, are most easy. And is possible in a near future, the creators make a proprietary tools for import content. A lot of work here, sorry
The modular philosophy is the better option for rct games, in all versions, The Lego(r) and Tente(r) or other similar assemble parts game

, leave to the people make all ideas, no are limit. Change the color of this parts, wall, doors, windows. All sizes, stiles, create billboards... but, better graphics, is a dream

----------------I yeah, is the same again, and again, ever the fans ask the same
Now the e-frontier people can kill me, for asking so much :S
Cheers. (sorry me non native english)