To add to the previous poster, some groups don't even use a credits page, so this is a bad idea. Also, since a group goes through all the work to scanlate these chapters for us, I don't think we have the right to remove the credits from the work they do. Though I'm not necessarily against limiting the amount of credits pages, as some groups abuse this and add a ridiculous 4 extra pages to each chapter, which for some of their series outnumbers the actual pages of manga (I'm looking at you Isekai Nonbiri Nouka).