I thought that the purpose of Opinion was to be a state somewhere between Invalid/Wontfix and triaged; where the bug no longer shows in the list of bugs for the package/project/etc so developers looking over the list of bugs to work on aren't distracted by it, but users searching for a bug by text would still find it and could add to it. This however, does not seem to be the case, so instead it seems to just be a confusing alias for Invalid.
I thought that the purpose of Opinion was to be a state somewhere between Invalid/Wontfix and triaged; where the bug no longer shows in the list of bugs for the package/project/etc so developers looking over the list of bugs to work on aren't distracted by it, but users searching for a bug by text would still find it and could add to it. This however, does not seem to be the case, so instead it seems to just be a confusing alias for Invalid.