Enabling to report a DM for spam even after a few messages have been sent

I like the new report spam button in new DMs, but I would like to see it stay longer. Right now after a few messages have been sent it just disappears forever, and that's a problem because not all scams/spams are obvious at the start. In addition, since the button was added I think scammers/spammers deliberately delay the "revel" of it being a scam by asking more abstract questions at first (like "hey can I ask you something" and then when I say yes they say something like "do you have a steam account named ___?" and so on...).

So long story short please make the report spam button stay for longer or maybe don't make it disappear at all.