In 1 John 1, John is relating his own experience with Jesus when Jesus was alive in the flesh and blood of a man. The Word of 1 John was Spirit and not seeable nor touchable.
I disagree with translations that capitalize word in 1 John 1. The life in 1 John 2 that was revealed, seen and testified to was the human being Jesus that the Word took on.
Oh, that's interesting that you would say that, but I somewhat agree with you. I also disagree with translations that capitalize word in John 1:1 and 1 John 1:1 because word is not a proper noun. Though surprising, it's refreshing to see you show awareness of this to some extent. However, most trinitarian theologians disagree with you. Every Bible I have seen makes the Word a proper noun in 1 John 1:1. They can play with capitalization and punctuation, but they can't change the Greek manuscripts anymore, fortunately.
My next point is that John didn't believe Jesus is God. Outside of his gospel and his letters, we have more insight into what John plainly believed. In Acts 4, John and Peter demonstrate that they don't believe Jesus is God with their prayer.
John and Peter believed Jesus is a servant like David and that they serve the Sovereign Lord and Creator. So Jesus isn't the Sovereign Lord and Creator.
Acts 4
23On their release,
Peter and John returned to their own people and reported everything that the chief priests and elders had said to them.
24When the believers heard this, they lifted up their voices to God with one accord.
“Sovereign Lord,” they said, “You made the heaven and the earth and the sea and everything in them. 25You spoke by the Holy Spirit through the mouth of Your servant, our father David:
‘Why do the nations rage
and the peoples plot in vain?
26The kings of the earth take their stand
and the rulers gather together
against the Lord
and against His Anointed One.’
27In fact, this is the very city where Herod and Pontius Pilate conspired with the Gentiles and the people of Israel against
Your holy servant Jesus, whom You anointed. 28They carried out what Your hand and will had decided beforehand would happen.
29And now, Lord, consider their threats, and enable Your servants to speak Your word with complete boldness,
30as You stretch out Your hand to heal and perform signs and wonders through the name of
Your holy servant Jesus.”