Ever since I realized you could type in Descriptions, Civilopedia entries, Help and Strategy texts straight into new Buildings and Units without using TXT_KEY tags, I've become kind of lazy and stopped creating TXT_KEY tags completely. Now my Database.log is full of Invalid reference errors, which is to be expected. I'm however wondering if there are any other side effects to doing it this way, or are text key tags just there to ease editing? Could too many Invalid references cause problems with the mod eventually?