Tahren the Noldarian Smith of Battle says 'Greetings there! I smell the blood of the tainted upon you, friend.'
Tahren the Noldarian Smith of Battle says 'I think the Village of Battleragers might be able to use a mage-killer like you.'
Tahren the Noldarian Smith of Battle says 'Interested?'

civilized <100%hp 100%m 46%mv 5105tnl (47.91%) 2 AM> sa Oi!
You say 'Oi!'

civilized <100%hp 100%m 46%mv 5105tnl (47.91%) 2 AM> say Yer knowin ah ahm!
You say 'Yer knowin ah ahm!'
Tahren the Noldarian Smith of Battle says 'Very well, but beware! Succumb to magic's allure and face destruction at our hands!'

****
Didn't get a village applicant title or powers. Did I have to say "yes" initially? Not sure what's going on.

You did not say anything in the affirmative.
"Oi" is normally a greeting, not an affirmation.
Nothing in your subsequent statement included a yes/aye or equivalent.

Instead, since your statement lacked anything clear for Tahren, he noticed something specific about what you said.

Yer k*no*win ah ahm!

He heard you say no.

Once you have refused Tahren, you'll need to pursue entry to the Battleragers via an immortal.