ちなみに、の好感度

１００％＝最高、０％＝最低
英訳で検証。

by comparison　３０％
by the by 　５０％
for comparison　３０％
for your information　２５％
if that helps　４０％
if that tells you anything
in fact　４０％
in passing
just for the record
just to tell you

incidentally

for your information、と会話の中で言われたら、むっとくる。