〈のぼり／幟／ノボリ〉〈を立て／が立っ／が目印／を見／を持っ／を掲げ〉

Google N-gram Corpus Counts
╭─ーーーーーー─┬───────┬───────╮
│ のぼりを立て │ 5,117 │ 59.7% │
│ 幟を立て　　 │ 2,433 │ 28.4% │
│ ノボリを立て │ 1,016 │ 11.9% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりが立っ │ 5,100 │ 50.3% │
│ 幟が立っ　　 │ 3,269 │ 32.2% │
│ ノボリが立っ │ 1,772 │ 17.5% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりが目印 │ 4,695 │ 81.5% │
│ 幟が目印　　 │   418 │  7.3% │
│ ノボリが目印 │   650 │ 11.3% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりを見　 │ 3,800 │ 78.3% │
│ 幟を見　　　 │   502 │ 10.3% │
│ ノボリを見　 │   553 │ 11.4% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりを持っ │ 2,331 │ 62.3% │
│ 幟を持っ　　 │   872 │ 23.3% │
│ ノボリを持っ │   541 │ 14.4% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりを掲げ │ 1,496 │ 63.5% │
│ 幟を掲げ　　 │   512 │ 21.7% │
│ ノボリを掲げ │   348 │ 14.8% │
╰─ーーーーーー─┴───────┴───────╯

Not an incredibly common form

@@ -20 +20 @@
-<re_nokanji/>
+<re_inf>&sk;</re_inf>

Google N-gram Corpus Counts
╭─ーーー─┬────────╮
│ ノボリ │ 48,711 │
╰─ーーー─┴────────╯

@@ -16,0 +17,4 @@
+</r_ele>
+<r_ele>
+<reb>ノボリ</reb>
+<re_nokanji/>

I used to need the tags on both forms to get the (P) in EDICT, but that's no longer the case. The "newsX" was basically a ranking based on a 20yo newspaper analysis. The "news2" ones didn't even generate a (P). No need to remove them, I guess.

https://www.monotaro.com/s/?c=&q=のぼり　幟 40 hits
more than half of the products actually use のぼり/ノボリ in the title, several don't even feature it in the description (i.e. it's an "sK" essentially)
https://www.monotaro.com/s/?c=&q=のぼり のぼり 1309 hits

Well, I've done it several times after getting an OK from Jim, so there will already be several entries where the kanji form doesn't have the same tags as the hiragana. I think having frequency tags on little used kanji forms makes things for users because the obvious implication is that the kanji is very common and worth prioritizing when the reality is, like here, that it's very sparsely used.

Google N-gram Corpus Counts
╭─ーーーーーー─┬───────┬───────╮
│ のぼりを立て │ 5,117 │ 67.8% │
│ 幟を立て　　 │ 2,433 │ 32.2% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりが立っ │ 5,100 │ 60.9% │
│ 幟が立っ　　 │ 3,269 │ 39.1% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりが目印 │ 4,695 │ 91.8% │
│ 幟が目印　　 │   418 │  8.2% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりを見　 │ 3,800 │ 88.3% │
│ 幟を見　　　 │   502 │ 11.7% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりを持っ │ 2,331 │ 72.8% │
│ 幟を持っ　　 │   872 │ 27.2% │
├─ーーーーーー─┼───────┼───────┤
│ のぼりを掲げ │ 1,496 │ 74.5% │
│ 幟を掲げ　　 │   512 │ 25.5% │
╰─ーーーーーー─┴───────┴───────╯

I don't recall seeing priority tags removed from borderline-rare kanji forms. In any case, this one doesn't seem to be borderline.

There's already a [uk] tag to indicate that のぼり is more common.

There are some technical app-dev reasons why I'd rather have the priority tags in both fields in this situation. It would be a different story if we were adding an [rK] tag to 幟.