99% of my journal is unfiltered. You don't need permission to add me, but be advised I may or may not add you back, depending on your grammar, writing style, use of foul language, posting frequency, age, or whatever sort of mood I happen to be in that day. Just because I don't add you when you add me doesn't mean I never will. Also doesn't mean I might not be reading your journal at random intervals.
You also don't need permission to drop me. I write what pleases me, and I won't be offended if it doesn't please you, nor will I ask to know why. Every day is get out of my LJ free day.