It doesn't. That ancient post is the first logical fallacy new anti-freepers are taught by their AF brethren: Because JimRob was once against Bush's candidacy way back when, it is "proof" that he is a hypocrite for supporting Bush today, being paid off by the RNC, or any number of laughable claims. The simple reality - that people change their minds about who to support, or even what party to support, all the time - never enters the minds of the angry, bitter conspiracy theorists.