is it possible to give the topic creator the right to edit the first post in a certain category at any time?
I have a category where you can search for other people and if something changes in the search, you should always be able to add the new information to the first post.
You can find that option in the settings of the category.
When you navigate to that category, click the wrench and then click settings; you can find the “Allow unlimited owner edits on first post” setting.