I’m not the one debating what the meaning of the word “are” is. Verse 8 clearly shows that St Paul, while indeed addressing the entire community of Corinth as a whole, is addressing each individual of that community as well (Planter and waterer are alike insignificant, though EACH shall be rewarded according to his PARTICULAR work.)
Then onward, notwithstanding verse 9 itself, St Paul is clearly describing what each man does, what happens to each man, etc unless one wishes to make the bizarre claim that “the Church” (as a whole body) is “tested by fire” all at once at one event in the future (verse 13).
Words truly have no meaning if one makes that claim.
“Verse 8 clearly shows that St Paul, while indeed addressing the entire community of Corinth as a whole, is addressing each individual of that community as well (Planter and waterer are alike insignificant, though EACH shall be rewarded according to his PARTICULAR work.)”
Each refers to each person working on the field, not each member of the church:
“I planted, Apollos watered, but God was causing the growth. So then neither the one who plants nor the one who waters is anything, but God who causes the growth. Now he who plants and he who waters are one; but each will receive his own reward according to his own labor.” - 1 Cor 3.6-8
The workers are are one team, and serve one purpose - the growth of the produce. They remain individual laborers, and will be rewarded appropriately by God. The church at Corinth is the field: “What then is Apollos? And what is Paul? Servants through whom you believed, even as the Lord gave opportunity to each one. 6 I planted, Apollos watered, but God was causing the growth.”
If that puzzles you, we have nothing to discuss. If words have no meaning, we cannot convey meaning with words - and words are all we have to use on FR.