I read through all 77 pages of the Library of Congress link dated May 9, 1910 and find no evidence that the KRS is fake. In fact the comments on page 35 would indicate that it is not a ‘modern forgery’.
“The exactness with which the location of the camp is described can be attributed to the probable burial of the ten men at the camp, and the natural desire to describe geographically the place of the bloody massacre of ten of their comrades; while the agreement of this exactness with the facts in nature shows how improbable it was for a faker runologist to have made the inscription. If the record be fraudulent, it is a remarkable fact that those two skerries exist, and at the right distance, and that there are no others.* * Other lakes in the vicinity, within a possible range of twenty miles, have been searched over by Prof. Fossum, Rev. O. A. Norman, and Mr. H. R. Holand, without finding anything that could be called “two skerries.” It is still more remarkable, on the hypothesis that the stone 251 is fraudulent, that within modern times they could not be called skerries, as they are not now surrounded by water. Hence the impostor-scribe was not only a runologist, but he was able to look backward through the physical change that has come over the region, and to describe those boulders as they were 548 years ago, when there is no doubt that the water of the lake was so high as to surround them and thus warrant the description which he made of them. He must have been a geologist. If the record is fraudulent, it is also remarkable that the impostor could see that 548 years ago the hill on which the stone was placed was surrounded by water so as to warrant the application of the term “island.” He must have known, and must have made allowance for the fact, that within recent time the country has dried up considerably, and that what are now marshes were then lakes. If the stone be fraudulent, it is singular that the impostor ran the risk of all these details and violated none of them. A well considered fraud is usually characterized by the omission of details. Here was a recklessness and a fearlessness amongst details which betoken honesty and truth. The very discrepancies, where the details diverge from present geographic knowledge, when correctly understood are turned to so many points of confirmation.”
And
“It appears, from several considerations, that the scribe was a rather illiterate Swede. If the stone be fraudulent, it is singular that such a man should prove himself capable of such literary and historical knowledge, and of such artful cunning. If the stone be fraudulent, it seems necessary to suppose that a non-educated Swede should be able to make the inscription and to accomplish the following:
1. A simple, straightforward record.
2. Correct the prevalent notion as to the whereabouts of Vinland.
3. Refer to two skerries, which could not have existed when the record was made but did exist 548 years ago.
4. Refer to an island, which was not an island when the stone was inscribed, but was so 548 years ago.
5. Define exactly the location of the camp with reference to the seaside and with reference to the stone.
6. Describe the massacre in such a way as to indicate that the men were scalped by Indians, although no mention is made of Indians.
7. Make the prayer to the Virgin Mary common in Scandinavia in 1362, but anachronistic in the nineteenth century.
8. As an impostor, utter the common prayer of a devout Catholic of the fourteenth century. 254
9. Use in part some ancient runic characters instead of those common in later centuries.
10. All this deceit and laborious cunning, without any ascertainable motive, perpetrated in an unpopulated, or at most only a sparsely inhabited, region amongst a wilderness of forests. “
And finally
“Resolved , That this Committee renders a favorable opinion of the authenticity of the Kensington rune stone, provided, that the references to Scandinavian literature given in this Committee's written report and accompanying papers be verified by a competent specialist in the Scandinavian languages, to be selected by this Committee, and that he approve the conclusions of this report.”
The Wiki link has nothing new and I haven’t had time to wade through all the arguments on the Andy White link regarding the calcite weathering and speculating on the historical provenance and cleaning of KRS.
"The Stone Age did not end for lack of stone, and the Oil Age will end long before the world runs out of oil"
-- Sheikh Zaki Yamani