You’ve got to think tactically.
First, when praising Ron Paul, always mention something about his policies you don’t like. For instance, I always mention that his policy of withdrawing our garrisons from Asia would invite Chinese adventurism. (Which I believe is the truth.) Along with that point, I can then safely mention any of the 85% of his policies I do support.
Second, never combine in the same post Ron Paul praise and criticism of whatever Republican is in fashion at the time. Keep the two separate, and the banhammer will flee you.
Think. Don’t just say things. Keep it brief. Use the rules of rhetoric.