Or just disable signature on Jr. Member rank since newcomers (aka people who genuinely interested with Bitcoin technology/discussion) who don't plan join signature campaign still need feature such as no PM restriction and can post images.
I am not sure whether theymos like to disable signature for Jr. Member or increase Merit requirement to 25 from 1 from Jr.Member.
so reducing Merit requirement for each rank is one of suggestion. Whether Merit requirement increase or decrease, it ratio of Activity vs Rank should be constant for all rank.