All suggestions should preferably be submitted to the relevant tracker on GitHub. If you feel a discussion is going to arise from the suggestion then you should also preferably post it on the discussion forum so it can be discussed there. Note that bug reports should not be placed on the wiki they should be posted on the relevant tracker, please see Bug reporting for info.
Please post the suggestions on the relevant GitHub tracker and be sure to group multiple suggestions onto a single ticket, we can't have a ticket for every little suggestion individually. Also be sure to search to see if a ticket with the suggestion is already currently opened or not.
The following places currently exist for suggestions: