When a duplicate post like this comes up, I usually flag it. Does anyone else do this? It really fragments discussion having duplicate posts on the main page s

When a duplicate post like this comes up, I usually flag it. Does anyone else do this? It really fragments discussion having duplicate posts on the main page since people usually just comment on the first one they see. I also noticed that the only difference in the URLs between the two was a trailing slash. Shouldn't that be included in the dupe detection? Probably the most frequent and easiest to catch cause.