Регистрировать новый аккаунт на GitHub не охота, поэтому отправлю патч тут.

https://github.com/cocucka-dev/lorsource/blob/master/src/main/java/ru/org/linux/user/User.java:

@@ -30,6 +30,9 @@
 import java.sql.SQLException;
 import java.sql.Timestamp;

+import java.util.ArrayDeque;
+import java.util.Deque;
+
 public class User implements Serializable {
   private static final int ANONYMOUS_LEVEL_SCORE = 50;
   public static final int ANONYMOUS_ID = 2;
@@ -278,37 +281,41 @@
     return getStars(score, maxScore, true);
   }

-  private static int getGreenStars(int score) {
-    if (score < 0) {
-      score = 0;
+  private static int getStarCount(int score) {
+    int stars = 0;
+    int n;
+
+    Deque<Integer> d = new ArrayDeque<Integer>();
+    d.add(1);
+    d.add(1);
+    d.add(1);
+
+    for(;;) {
+      if (stars < d.size()) {
+        n = (int) d.toArray()[stars];
+      } else {
+        n = d.pollLast() + d.peekLast();
+        d.addFirst(n);
+      }
+      score = score - n*100;
+      if (score < 0) {
+        break;
+      }
+      stars = stars + 1;
     }
-/*    if (score >= 600) {
-      score = 599;
-    }*/
-
-    return (int) Math.floor(score / 100.0);
-  }
-
-  private static int getGreyStars(int score, int maxScore) {
-    if (maxScore < 0) {
-      maxScore = 0;
-    }
-    if (maxScore < score) {
-      maxScore = score;
-    }
-/*    if (maxScore >= 600) {
-      maxScore = 599;
-    }*/
-
-    int stars = getGreenStars(score);
-    return (int) Math.floor(maxScore / 100.0) - stars;
+    return stars;
   }

   public static String getStars(int score, int maxScore, boolean html) {
     StringBuilder out = new StringBuilder();

-    int stars = getGreenStars(score);
-    int greyStars = getGreyStars(score, maxScore);
+    int stars = getStarCount(score);
+    int greyStars;
+    if (maxScore == score) {
+      greyStars = 0;
+    } else {
+      greyStars = getStarCount(maxScore) - stars;
+    }

     if (html) {
       out.append("<span class=\"stars\">");