I know this is implemented so there are no flood posting but 30 seconds would be sufficient for that. Its somewhat annoying waiting 75 seconds between posts. Thanks admins for listening :grinthumb
You can also search the site using the box at the top of the page. This will use the Google index rather than a local database search. You will find mixed results depending on what you are searching.
For one second I thought you were talking about search constraint (not posting). For search it's set to 30 seconds. I think 75 seconds for posting is not too harsh, unless you plan to spam the boards .