Well, its not necessarily about reading runes. There's actually no evidence that the runes were ever traditionally used for divination (what is referred to in lore is basically casting lots, but its unknown what was used). There's very little history to go by with regards to Seidr practice, so people who practice their modern version of it have mostly disregarded what is there, and instead incorporated Harner-style journeying, with norse-germanic symbolism.