It's a good question and like Arsal and Bird have pointed out, both feeling and thinking functions are rational in use. So when we talk about feelers in debate, we are assuming that the feeler can conduct rational arguments based on personal and ethical criteria- which is totally possible and completely logical.
But not everybody sees it that way. You have to be really careful when adding ethical criteria into arguments, even if they're completely logical, people will throw them out of the argument.
I know that kind of happened to me in my English class fall quarter. It was only 101 so the TA went over our papers with us a couple of times in draft form before turning it in for grading. I watched her read my thesis twice so I know she should have caught this. She said it was a good thesis and that the rest of the paper was quite coherent and I was putting ideas together well. I got a D in the paper because I used the word "good" in my thesis by essentially asking is this "good for us". I was talking about industrialization and the environment as well as out human interaction with it. She saw on word and felt that the rest of the paper was a value judgement.
But not everybody sees it that way. You have to be really careful when adding ethical criteria into arguments, even if they're completely logical, people will throw them out of the argument.
I know that kind of happened to me in my English class fall quarter. It was only 101 so the TA went over our papers with us a couple of times in draft form before turning it in for grading. I watched her read my thesis twice so I know she should have caught this. She said it was a good thesis and that the rest of the paper was quite coherent and I was putting ideas together well. I got a D in the paper because I used the word "good" in my thesis by essentially asking is this "good for us". I was talking about industrialization and the environment as well as out human interaction with it. She saw on word and felt that the rest of the paper was a value judgement.