>As a hungarian: agent would imply a member of the secret police which have already been released years ago. These are informants, regular people like students and teachers to members of the churches to actors and musicians etc.
Yes and? That they did it for free instead of for pay is supposed to make it better?
"i like waffles"
"oh so you HATE pancakes?!"
this is to say, no, it just means what it means. rest is all you man.
And agent is not the same as informer. Whether it's better, worse, or the same is up to you.