Hi Trio welcome to the forum
https://github.com/discourse/discourse/blob/master/config/site_settings.yml#L1028
The setting can be changed to other than the default so it may not be 30 for the Infinite Flight forum.
Maybe not what you want to hear, but instead of thinking of ways that would let you make more edits per day, you should think of ways that allow you to make less edits.
For example, one way that comes to mind is saving draft versions before posting them. Not that I don’t make my share of typo fix and “d’oh! I forgot this” edits. I usually get most edits during the grace period, but not always. For longer posts I often put them together on my computer first and when I think they are good enough I then post them.