I looked through these links, and as far as I can tell, they accurately represent Christian Science teachings. I cannot speak for their accuracy regarding Mrs. Eddy. However, you said much more than that Christian Science is not genuinely Christian (a point I would agree with) or that Mrs. Eddy was a fraud (a point that I don't know enough to agree with or not).
You said she's in Hell, along with Stalin, et al.
If all false teachers are in Hell, then I suppose Mrs. Eddy must be, from the orthodox Christian standpoint. My view is that even if Hell exists, surely it is reserved for genuine evil, not confusion. Eddy and Stalin simply don't belong in the same category. If Hell includes all false teachers of religion, then God is one nasty SOB, which I find hard to believe. I know something about Christian Science and Christian Scientists. I believe it, and they, do more good than harm. In fact, I have more respect for it and them than for much of what passes as modern evangelical Christianity and for many of its followers. (David Frum on certain evangelicals' schtick: "God will make you rich. God will make you thin. God will improve your sex life." Christian Science stands head and shoulders above this.)