Accusation: "You haven't published in a real peer-reviewed journal"
Response: Either say "Peer review is just an old-boys network for peon scientists to pat each other on the back", or accuse journal editors of persecuting you. Compare yourself to Galileo.

Accusation: "You don't have solid proof"
Response: Either restate what you said already, restate it slightly differently, call your accuser a name, or suggest they are part of the conspiracy to hide the truth. Compare yourself to Galileo.

Accusation: "Because of X, Y, and Z, your theory is false and you're an idiot"
Response: Yell "That's Ad Hominem - I win the argument" (and that they've persecuted you).

Accusation: "Because of X, Y and Z, you are wrong"
Response: If they fail to call you an idiot, there are a few ways to respond to this. Either nitpick an aspect of their argument so that you can ignore the rest while diverting the discussion into a meaningless tangent. Or cut and paste large sections of print or references to papers that may or may not agree with you (the exhaustion strategy). Finally, it's always a good idea to just ignore them and restate your original argument. Alternatively demand they provide you with *scientific* evidence that their theory is the correct one. If they do, ignore it and restate your original argument.

Accusation: "No credible scientists or scientific agencies believe this theory"
Response: "That's because they're part of a conspiracy to hide the truth!" In addition assert motives for the conspiracy like maintaining control over the populace, spreading materialistic atheist dogma, acquiring grant money, etc. Don't forget to challenge orthodoxy and compare yourself to Galileo! He was persecuted by the orthodoxy too! Remember, whenever a majority of scientists believe anything, that means it's wrong. Cite Kuhn, compare yourself to Galileo again.

If they show up at your blog and leave comments, remember to delete anything critical at all, dissent must not be tolerated on your home turf. Anything critical might damage the proof of your unassailable intellect, and the absence of critique will make it appear as if your critics are afraid to engage you on your own turf.

You see? It's easy! All you have to do is ignore anything that contradicts your theory, nitpick others' arguments, force them to explain themselves, accuse them of lying, accuse them of conspiring against the truth, exhaust them with dumps of links or citations, repeat yourself, and compare yourself to Galileo, because he had problems convincing the orthodoxy too. Also, don't forget to call yourself a skeptic, or dissident, or iconoclast.