Tester, this question is directed at non-Catholics that reject tradition. You don’t reject tradition; you believe that the tradition of the CC affixed the names to the anonymous gospels - right?
Is that your answer to the OP?
it was a reply to your question that quoted…
If St. John told 10 believers who wrote the Gospel and they each told 10 others and they each told…
AND you claim every believer was Catholic then it was Catholic tradition that kept track of authorship…
BUT IF your point is that Sola Sciptura means NO tradition can ever be used: then you are mistaken.And that has been pointed out to you in the past.
From
Catholic.com
“Even the principle of sola scriptura (“Scripture alone”), according to the sharpest Protestant scholars, means that the Bible is the ultimate authority—above councils and popes and any tradition**—but not that no commentary or tradition may be cited or utilized**.”
catholic.com/thisrock/2004/0402fea3.asp
From wiki
“Sola Scriptura is not a denial of other authorities governing Christian life and devotion. Rather, it simply demands that all other authorities are subordinate to, and are to be corrected by, the written word of God”
en.wikipedia.org/wiki/Sola_scriptura
From
NEWADVENT.org
Sola scriptura (“Bible alone”)
The [first] objective [or formal] principle proclaims the canonical Scriptures, especially the New Testament, to be the only infallible source and rule of faith and practice, and asserts the right of private interpretation of the same, in distinction from the Roman Catholic view, which declares the Bible and tradition to be co-ordinate sources and rule of faith, and makes tradition, especially the decrees of popes and councils, the only legitimate and infallible interpreter of the Bible. In its extreme form Chillingworth expressed this principle of the Reformation in the well-known formula, “The Bible, the whole Bible, and nothing but the Bible, is the religion of Protestants.”** Protestantism, however, by no means despises or rejects church authority** as such, but only subordinates it to, and measures its value by, the Bible, and believes in a progressive interpretation of the Bible through the expanding and deepening consciousness of Christendom. Hence, besides having its own symbols or standards of public doctrine, it retained all the articles of the ancient creeds and a large amount of disciplinary and ritual tradition, and rejected only those doctrines and ceremonies for which no clear warrant was found in the Bible and which seemed to contradict its letter or spirit. …"