When people respond to my posts, as you just did, it alerts me and makes it easy to respond. The above posts must have been replies to each other or to other commenters, which don't show up as alerts for me. This is one of several domains I try to check regularly for questions, but the safest bet is always to message me directly with any concerns to make sure I see them promptly. As far as my priorities go related to modding, this thread itself doesn't break the top ten ten.
I can't speak to the exact cause of people's crashes but I strongly suspect they stem from not following directions properly. This modpack requires all DLC to be downloaded and enabled. If you don't have the Aztec DLC enabled and you try to run a mod that references it, you'll get returned to the start screen. I have an alternate modpack available that is made for people without the DLC called "Ananse's BFG Cheap Bastard Modpack" which such persons would want to use instead.
re: the UI question about what different numbers signify, frankly I have no clue! CQUI is incorporated in its entirety because its miles better than the base game's UI, but I didn't write a single line of that code myself and wouldn't pretend to understand all of its features. I would suggest to people who are expecting a super high degree of professionalism here that I am a "one man band" working in my free time without compensation. If you notice a feature is incomplete, feel free to leave a note about it here or somewhere else, but understand that I probably know about the issue already and that it's incompleteness is likely a factor of time constraints.
In that sense I'm only *really* interested in game-breaking problems that cause freezes, crashes, or dramatically impact gameplay. Minor issues with text and display in a mod this large are just what you should expect at this time!