sdk/hints: use a single "hint" type instead of nprofile/nevent/tag/nip05.

sdk/hints/keys.go

@@ -10,20 +10,14 @@ const (
 	LastFetchAttempt HintKey = iota
 	MostRecentEventFetched
 	LastInRelayList
-	LastInTag
-	LastInNprofile
-	LastInNevent
-	LastInNIP05
+	LastInHint
 )
 
-var KeyBasePoints = [7]int64{
+var KeyBasePoints = [4]int64{
 	-500, // attempting has negative power because it may fail
 	700,  // when it succeeds that should cancel the negative effect of trying
 	350,  // a relay list is a very strong indicator
-	5,    // tag hints are often autogenerated so we don't care very much about them (that may change)
-	22,   // it feels like people take nprofiles slightly more seriously so we value these a bit more
-	8,    // these are also not often too bad
-	7,    // nip05 hints should be a strong indicator, although in practice they're kinda bad
+	20,   // hints from various sources (tags, nprofile, nevent, nip05)
 }
 
 func (hk HintKey) BasePoints() int64 { return KeyBasePoints[hk] }
@@ -36,14 +30,8 @@ func (hk HintKey) String() string {
 		return "most_recent_event_fetched"
 	case LastInRelayList:
 		return "last_in_relay_list"
-	case LastInTag:
-		return "last_in_tag"
-	case LastInNprofile:
-		return "last_in_nprofile"
-	case LastInNevent:
-		return "last_in_nevent"
-	case LastInNIP05:
-		return "last_in_nip05"
+	case LastInHint:
+		return "last_in_hint"
 	}
 	return "<unexpected>"
 }