Would this be accurate information when in a category’s settings I can set the permissions to this?:

If “write” needs log in, why would it allow me to set “Reply” and “Create”?
I tested it as a logged out user and it indeed asks me to log in on New Topic, or Reply, which makes sense. But in that case, and assuming that the levels are set to “this level and all the ones above” (which I believe it is?), then “everyone” wouldn’t be the same as using “trust level 0”? Or are these permissions exclusive to that level? e.g. if I set it to trust level 2, it only affects users on that level, but not users on trust level 3 and above?
Looking at this setting:
makes me believe that it’s exclusive to that level. In some cases it can be useful, but if we want to affect all levels above a certain level, then we have to include all of those levels individually, instead of just adding the lowest one and let it affect the ones above.
