Only difference is if he post on research you can see all the responses on one post instead of scattered out all over the thread.
Which made it easy to quickly review the responses without scrolling through stuff I didn't want to see. Although there were one or two that would show up there also. But most weren't bad.
On qmap.pub if you click on a Q post’s Title, it will usually take you to the thread (or archived copy) that Q dropped is his post in.