There’s a big difference between someone who is really asking for advice or help and one who is wasting your time.
If you ask for a recipe and aren’t writing it down, I know you are just wanting to hear my voice. Why, I don’t know, but that’s what it is.
There are some scammers who want to be seen talking to you so that they can relay an imaginery conversation with ‘proof’.
So if you see someone talking to X and then later they say; “X told me that..” well, unless you can verify with X, (or know the speaker as a liar) you’ll believe what they say.
And becoming someone’s alibi is a big waste of time.