My idea for how a game should be made

I know I havent been a member long, and noone here knows me, which gives me the perfect forum to shout out my ideas and not care of the fallout.

1 I always thought it would be cool to let players build their own content, like the first players or players to achieve certain tasks can add a building to the town, or improve it. You could dive further into having a voted council that voted intern to allow or deny the change/creation of the area.

2 Player run vendors, or an auction system. These are key in game now, no one likes all the lag associated with wtb yada yada its just more effective having a general meeting location, or the ability to sell, without opening 30 trade screens.

3 Items of rare or unattainable value. People always want something no one else would have, therefore there should be some sort of special reward, or item for people who have played longer, or achieved certain goals, amounts of money, ect. Or even a length of time with an account like ultima online does with ethereal mounts. Perhaps the option to donate to get said items.

4 Variety. Not everyone is going to want to do combat, not everyone is going to want to skill, some people dont want to do either, there should be enough content for each so you arent forced down one path.

Thats a few ideas off the top of my head thanks for your time