I regularly see 2 mods I use register steam fluid and causes a red warning text in my multimc console plus other unwanted effects. Plus having like 10 different copper types etc get really redundant fast and trying to track down all of the ores by hand can be tedious and rather difficult. Heck a mod that can read the forge ore/fluid dictionary and do a print out of all duplicate fluids/ores would probably be able to accomplish what I'm trying to do.