If we assume that pseudoscience is not part of mainstream science and therefor is easily recognized, then we will wrongly lump scientific creativity together with pseudoscience and treat both as the hated enemy. Attempts to suppress pseudoscience might end up suppressing creativity and killing off unconventional new ideas. Attempts to preserve Science against the onslaught of crackpots can also preserve Science against needed growth. If we defend too strongly against crazy ways of thinking, then we will also suppress those improved ways of thinking which, when first encountered, appear crazy. But pseudoscience and crackpottery are NOT the same as preliminary scientific ideas and speculations.
Revolutionary discoveries are different than pathological science.
Superstition, ignorance, quacks, and crackpots really do cause harm, and it really is worthwhile to fight against them. We should not abandon the fight against real pseudoscience in order to preserve Frontier Science. First, it is of prime importance to thoroughly investigate a subject before attacking it as erroneous. History teaches us that mistakes in this regard have been made too many times in the past. New ideas have been accidentally suppressed and progress has been held back because novel research has been mistakenly declared to be part of pseudoscience.