@neologist,
neologist wrote:
Were I to say, as you request,"No. I don't come here to for that.", would anyone understand?
Why wouldn't people understand it? The fact that you won't say it tells me two things:
1. Evangelizing
is the reason you come here.
2. You value honesty.
What I want to draw you to see is that you are engaging in some dishonesty, if not in word, in deed. If you enter into discussions with people, allowing them to think it's just a casual conversation, but you know you have an unannounced agenda, that's dishonest. The harm it does on an internet forum is that it degrades trust. It helps to create an unhealthy atmosphere.
I believe I understand where you're coming from. Maybe you could just put yourself in other peoples' shoes. How would you like it if you found that someone you're talking to has a secret agenda? Wouldn't you prefer it if they would announce in some way to you what they're up to so you know where you stand with them?