None of the things you mention seem at all problematic to me. I’m mostly opposed to the mood of “Ooh, a puzzle! Hey let’s all put our heads together and try to figure it out!!” Apart from that mood, I think it’s pretty hard to go wrong in this case, unless you’re in a position to personally find a new piece of the puzzle yourself. If you’re just chatting with no particular domain expertise, ok sure maybe you’ll inspire some idea in a reader, but that can happen when anyone says anything. :-P
None of the things you mention seem at all problematic to me. I’m mostly opposed to the mood of “Ooh, a puzzle! Hey let’s all put our heads together and try to figure it out!!” Apart from that mood, I think it’s pretty hard to go wrong in this case, unless you’re in a position to personally find a new piece of the puzzle yourself. If you’re just chatting with no particular domain expertise, ok sure maybe you’ll inspire some idea in a reader, but that can happen when anyone says anything. :-P