It feels a bit odd to bump a thread after a day or two, or more... with just "Thank you" in the post. When I have more information to share, such as why I am writing back, then I do bump and post. Other than that, I don't like to do it because it seems somewhat meaningless. Of course I want to say it, especially to the person who was so helpful, but it seems odd to me.
If I ask a question, and it get answered quickly, or more importantly, if I am there to reply with "Thank you" quickly, then I will do it. But if a few days go by, then I tend to let the thread die off. No one wants to click on the thread just to read that one line.
Except for the person who answered and deserves the thank you. lol
Hey, that's why the "rep" functions work well IMO. No, this isn't a suggestion. I'm sure people are against it for various reasons. I don't want to start an argument with anyone.