Currently, anyone viewing, eg, https://en.wikipedia.org/wiki/Special:AbuseFilter/history/1/item/22300 (an old revision of the enwiki test filter) will see at the top and bottom the message from abusefilter-edit-oldwarning ("You are editing an old version of this filter...")
For users that do not have permission to edit the filter, this message is incorrect.
I propose adding a new message, abusefilter-view-oldwarning, which is instead shown to users who cannot edit the filter (includes the warning about statistics being for the current filter, doesn't include the warning about overwriting changes if you edit)
Thoughts?