PowerRanger
On a point of order, only a verb can have "voice" (i.e. active or passive); an adjective cannot be active. Indeed, neither can an adverb, which is the part of speech of the word you were referring to: "obnoxiously". Adjectives qualify nouns and adverbs qualify verbs (oddly enough).
Additionally the use of the verb "ignore" was very much active and not passive. In grammar, the voice determines whether it is the subject or the object of the sentence that receives the action of the verb. In 150Aerobat's posts, the object of the sentence was "posts" and the verb was very much actively describing the fact that you appeared to be ignoring them.
I think it may be you who is a little confused.
Doesn't anyone bother learning grammar these days?