Everyone who ever saw your original post will be notified, and everyone who looks at the Lanarkshire forum will see it.
There are two reasons for not starting new threads with the same questions.
First, RootsChatters are helpful but all volunteers, and it's a bit vexing when you've spent a while looking for a particular answer only to find that other people have already done the same things in response to an earlier thread.
Second, if you start a new thread then people who would have been notified of an addition to the original thread won't be, and they may not see it.