With regard to the OP, I would say that there are some who believe in “Solo” scriptura and claim it as their definition of Sola Scriptura. I would say that they have a flawed understanding of the principle of Sola Scriptura and have given in a definition that is at odds with the historical definition and practice of Sola Scriptura. As such it is an incorrect definition, and leads to some weird stances. So the example that I have given before, and still stand by this example, is that there are many people who have false definitions of the Trinity, defining the Trinity in Modalistic terms. The fact that they are ignorant of the historic definition of the doctrine of the Trinity doesn’t change the definition of the Trinity. It only demonstrates that they are ignorant of what it says. So in reference to the OP, I would say that those who believe in the historical definition of Sola Scriptura do not reject tradition outright. They do hold that the scriptures are the only infallible (emphasis mine) revelation of God possessed by the Church, and that where scripture and some other authority for doctrine or practice (such as tradition or magisterial authority) come into conflict, then scripture must be the rule and norm of faith that trumps the competing authority. Tradition and scripture frequently compliment one another, but not always. This is demonstrated by Christ himself through scripture. I hope that helps.