The current home page does not contain all the information, just very basic info.
You should go browse the home page, talk to the authors, and talk to the community about the website. The home page has TMI, if anything - a LONG shot from very basic info.
It requires people to visit other pages, the information is spread everywhere which makes it very tedious. Having all the information in one place would be beneficial in many ways.
This is how a webpage works though. Do you envision collecting all the information on everything to do with GRC on one page? How would we navigate it? We could split it up into sections, and then we have the same thing we have now.
Regarding promotional work, I would 100% not want the community writing about my work. I see no benefit in someone copying the content from my hypothetical project feed and trying to run social media for it... The Gridcoin Twitter does a good enough job as it is for overall news, and if people want project news they go to the project page.
You are missing the point here. The suggested "project suggestion hub" would be an additional feature to make it easier to gather information in order to make a decision before voting. How many pages of forum entries on several boards should people read to get the necessary insights? How many past poll results should they google, how many hours should they spend on reddit, IRC or slack, going through tons of comments in order to get the full picture? The more time it takes, the less people are inclined to participate. This is the same for real life elections. Why can't we try to provide a place that bundles all relevant information?
They should spend time to do exactly all of that! People should be expected to make an informed, educated decision on projects by doing their research. If that weeds out 99% of suggesters, great! It means that the inclusion polls posed will be quality selections. Bundling everything is both impossible to keep up to date, and makes it easy for false information to be spread on a project. Decentralised, remember?