Do you think if the Society would stop predicting the end, folks might see them differently
Technically, they haven't "predicted" 1975 or 2000, not even 2014 in writing ... but you can tell they actively promoted the rumours and wild expectations. They seem to can't help themselves, because it keeps the sheep motivated a while longer. You will find a technique they often use in the publications; they will put words in the mouth of "faithful witnesses" or "wordly experts" to say what they don't dare saying as boldly as they did regarding 1914, 1915 or 1925.
No, they haven't got the slightest credibility left when it comes to prophecy interpretation. You may want to discuss also the value of prophecy itself in the Scriptures. That's another discussion altogether.
Eden