Can you please make item conflicts crash the game like block conflicts? When two blocks conflict it gives a nice text file that tells you exactly what conflicted and what ids are available, nothing like that for item ids. For item ids, you nead to search the log for the conflict, ignore all surrounding text, boot the game again to try and find an empty id (which doesn't always work), add 256 to the ids and then modify the configs and hope the news ids doen't have any conflicts of they're own, which you can't tell without searching the log again or search through nei again. Please, make item conflicts just as user friendly as block conflicts, until then I will have to restart my world.

No, Modders like to do stupid things like replace items without clearing them first, so for us to do that we would break almost all mods in existance.

Just wait for 1.7 when IDs are a non-issue.