You can add comments to any feature proposal, upcoming change, or previously implemented feature. Simply click on the item above, give the full description a read, and then browse to the comment section below the main body.
You can also 'like' any proposal that you would like to see implemented. We'll use the number of 'likes' as a general gauge for community enthusiasm, but there is no specific threshold of 'likes' that will ensure a feature is implemented. Please 'like' freely!
Comments and 'likes' will help determine whether or not a change is implemented (and when) alongside many other factors, such as: complexity, potential benefits, the need to expand or revise the proposal, impacts on other areas of the platform or DEAL's work, and so on.
If you have feedback about this process or the hub itself, please do drop a comment on the Platform Development Hub feature page