There is an important distinction to be made between that which is extra-biblical and that which is contra-biblical.How can one take zero issue with most of the traditions and teachings and then in the very next breath say you object to any traditions that run counter? Then maybe don't take 'zero issue'....such a strange contradiction to make, its no wonder everyone here is playing semantics with this guy.
For example, there is nothing in the Bible that would prohibit the use of Rosary beads during prayer or the burning of incense during worship. So these traditions are essentially harmless and perhaps even beneficial to many believers. However, other traditions run counter to the very clear teaching of Scripture. A good example is the Catholic doctrine of the Immaculate Conception, which states that Mary was born without sin and holds a special intercessory role between man and God. But as we very clearly read in the Bible:
For all have sinned and fall short of the glory of God - Romans 3:23
For there is one God, and one mediator between God and men, the man Christ Jesus - 1 Tim. 2:5
The danger with traditions is that they become so entrenched and intertwined with correct doctrine that people can no longer tell the difference. And if you have bad doctrine in the form of contra-biblical teaching in your belief system, your faith will be weakened as a result, often considerably. This is why it is so important for Christians to make a thorough and lifelong study of the Bible one of their highest priorities. The Word of God is compared to a sword on multiple occasions, and for good reason. A sword provides a means of both defense and attack. With a strong knowledge of Scripture hidden in your heart, you will be able to easily discern truth from falsehood (defense) and have a ready arsenal of scriptural passages to utilize when bearing witness to the Truth (attack).