In an article that I was privileged to publish based on a letter written to me by an active and serving JW elder, this subject came up. I think his commentary (from an insider looking out) says a lot about the credibility of the Governing Body's claimed attachment to "holy spirit."
"It makes no sense that honest debate about the truth of certain beliefs can be treated as a sin against the Holy Spirit, while the final version of the “truth” is still being fine tuned. After all, the Governing Body VOTES on what new teachings will be published or presented at our assemblies. Does that mean that their debates and votes are also a sin against the Holy Spirit? If the Governing Body is acting under the inspiration of the Holy Spirit, shouldn’t all their votes be unanimous? Are those who voted against the majority being influenced by Satan? After the vote is taken, why should that particular teaching ever be changed due to “new light”? Does not the Holy Spirit know what is true and what is not? Or does the Holy Spirit inspire the Governing Body to purposely publish incorrect information from time to time – just to keep us off-kilter? This entire concept of the Governing Body being guided by Holy Spirit is frankly ridiculous and inconceivable.
"I feel that the Watchtower Society is totally wrong by holding this unsupported position. After all, very few of the teachings of Russell and Rutherford are still held to be “truth.” Where was the Holy Spirit prior to Rutherford’s death in 1942, back when almost every Witness was considered to be a member of the Anointed remnant? Who was guiding the leadership of the Watchtower Society back then?"
http://ex-jw.com/elder-shares-honest-opinions
JV