diff --git a/osu.Game.Tests/Visual/Online/TestSceneUserProfileOverlay.cs b/osu.Game.Tests/Visual/Online/TestSceneUserProfileOverlay.cs
index a8ed2cf110..ce8136199f 100644
--- a/osu.Game.Tests/Visual/Online/TestSceneUserProfileOverlay.cs
+++ b/osu.Game.Tests/Visual/Online/TestSceneUserProfileOverlay.cs
@@ -71,13 +71,13 @@ namespace osu.Game.Tests.Visual.Online
         {
             base.LoadComplete();
 
-            AddStep("Show offline dummy", () => profile.ShowUser(TEST_USER, false));
+            AddStep("Show offline dummy", () => profile.ShowUser(TEST_USER));
 
             AddStep("Show null dummy", () => profile.ShowUser(new APIUser
             {
                 Username = @"Null",
                 Id = 1,
-            }, false));
+            }));
 
             AddStep("Show ppy", () => profile.ShowUser(new APIUser
             {
@@ -86,7 +86,7 @@ namespace osu.Game.Tests.Visual.Online
                 IsSupporter = true,
                 Country = new Country { FullName = @"Australia", FlagName = @"AU" },
                 CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c3.jpg"
-            }, api.IsLoggedIn));
+            }));
 
             AddStep("Show flyte", () => profile.ShowUser(new APIUser
             {
@@ -94,7 +94,7 @@ namespace osu.Game.Tests.Visual.Online
                 Id = 3103765,
                 Country = new Country { FullName = @"Japan", FlagName = @"JP" },
                 CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c6.jpg"
-            }, api.IsLoggedIn));
+            }));
 
             AddStep("Show bancho", () => profile.ShowUser(new APIUser
             {
@@ -103,10 +103,10 @@ namespace osu.Game.Tests.Visual.Online
                 IsBot = true,
                 Country = new Country { FullName = @"Saint Helena", FlagName = @"SH" },
                 CoverUrl = @"https://osu.ppy.sh/images/headers/profile-covers/c4.jpg"
-            }, api.IsLoggedIn));
+            }));
 
-            AddStep("Show ppy from username", () => profile.ShowUser(@"peppy"));
-            AddStep("Show flyte from username", () => profile.ShowUser(@"flyte"));
+            AddStep("Show ppy from username", () => profile.ShowUser(new APIUser { Username = @"peppy" }));
+            AddStep("Show flyte from username", () => profile.ShowUser(new APIUser { Username = @"flyte" }));
 
             AddStep("Hide", profile.Hide);
             AddStep("Show without reload", profile.Show);
diff --git a/osu.Game/Overlays/UserProfileOverlay.cs b/osu.Game/Overlays/UserProfileOverlay.cs
index d9b4e68a75..a187cc6e77 100644
--- a/osu.Game/Overlays/UserProfileOverlay.cs
+++ b/osu.Game/Overlays/UserProfileOverlay.cs
@@ -42,7 +42,7 @@ namespace osu.Game.Overlays
 
         public void ShowUser(string username) => ShowUser(new APIUser { Username = username });
 
-        public void ShowUser(APIUser user, bool fetchOnline = true)
+        public void ShowUser(IUser user)
         {
             if (user == APIUser.SYSTEM_USER)
                 return;
@@ -116,19 +116,20 @@ namespace osu.Game.Overlays
                 }
             };
 
-            if (fetchOnline)
-            {
-                userReq = user.Id > 1 ? new GetUserRequest(user.Id) : new GetUserRequest(user.Username);
-                userReq.Success += userLoadComplete;
-                API.Queue(userReq);
-            }
-            else
+            sectionsContainer.ScrollToTop();
+
+            // Check arbitrarily whether this user has already been populated.
+            // This is only generally used by tests, but should be quite safe unless we want to force a refresh on loading a previous user in the future.
+            if (user is APIUser apiUser && apiUser.JoinDate != default)
             {
                 userReq = null;
-                userLoadComplete(user);
+                userLoadComplete(apiUser);
+                return;
             }
 
-            sectionsContainer.ScrollToTop();
+            userReq = user.OnlineID > 1 ? new GetUserRequest(user.OnlineID) : new GetUserRequest(user.Username);
+            userReq.Success += userLoadComplete;
+            API.Queue(userReq);
         }
 
         private void userLoadComplete(APIUser user)