I sometimes find myself thinking about something, and I wonder if anyone has posted on MN about it. I search and an old thread comes up, and I'd be interesting in replying. I understand it's bad etiquette, but I don't really understand why.
I get it if it's an advice thread about a very live situation (cancel the cheque), but if it's a general topic (money, books, TV, holiday destinations, etc), why not? I doubt it's going to drown out someone's pressing issue.
Why is is wrong to add to an old thread?