It was your method of vetting with which I was arguing: "Presidents have more impact on our daily lives, sufficient that the rule was made. "
The issue itself of ballot access will likely come down to reasonableness at the Supreme Court. Is it reasonable to permit anyone who wants to be on the ballot to actually be on the ballot. In that case there are thresholds that need to be met, as you pointed out, signatures. Unfortunately party candidates have the infrastructure to meet those thresholds, and perhaps electronic voting could eliminate that barrier.
It is up to the voting citizens of the US to vet their candidates and they have the power to reject anyone, including a sitting President. The requirements for office is quite clear and very basic and while you may want more standards, they don't exist. I posted earlier that this would be a challenge between the 12th Amendment and Article II, Section 3, Clause 5. That's what the Supreme Court does, it adjudicates between sometimes conflicting sections of the Constitution.
One more comment on this point:
"One more thing, I"m not even saying the president's taxes should be made avialable[sic] to the public, but they should at least be made available to the appropriate committees in congress and the senate, so if public airing of private info is your beef, that isn't my argument."
The oversight of the election of President by the Congress is also governed by Congress and candidate financial disclosures must be provided to the FEC with which Congress has oversight. Separation of Powers would dictate that for the purpose evaluation qualifications of a President for office, Congress has no role beyond that described in the 12th Amendment.
I'll await the Supreme Court decision, perhaps a lofty perch, but a position with which I am comfortable.