"Skeptic side" refers to having a skeptical or doubting perspective or viewpoint on a subject. It means being cautious and questioning, not easily believing something until there is enough evidence or proof to support it. Full definition
There are many smart, informed people on the climate skeptic side of the debate (see here). (nofrakkingconsensus.com)
In examining his other repeated talking point about the psychological denial of the issue, it's hard to miss references to the «corrupted skeptic side.» (gelbspanfiles.com)
A lack of true curiosity plagues the fake skeptic side of things. (planet3.org)