69817
I'm aware that "●▲■" is a [famous
drawing](https://terebess.hu/zen/sengai/sengai.jpg) from a Zen Buddhist priest
by the name of Gibon Sengai. This drawing can be interpreted in different ways
but the most common is that the circle represents reality/mind, the triangle
represents a human, and the circle the earth. Other definitions are related to
design([1](https://www.ddc.co.jp/dtp/images/20181205-design-no-
iroha-04-09.png),[2](https://www.ddc.co.jp/dtp/archives/20181205/140900.html));
as [placeholders](http://www.utamap.com/showkasi.php?surl=S02394)(each of the
singer's names is represented by a shape). But I don't think this applies to
this context. Also, the meaning of these shapes discussed
[here](https://japanese.stackexchange.com/questions/38508/what-do-the-
shapes-%E2%97%BB-mean-in-japanese-and-are-there-variations-in-meaning?rq=1)
doesn't apply in this case either since there are other symbols used too
(★,◆,▼).

Some examples of titles of threads from 2ch/5ch:

  1. ○△□茨城のおいしいパン屋さん・４店目□△○ 
  2. ●■▲新型インフルエンザの初期症状 
  3. ●■▲白山信仰を熱く語る 
  4. ●▲■HP公開☆Windows98SEで鯖立て☆PWS●▲■ 
  5. ★NTT系列●▲■おまとめ請求●▲■請求一本化★
  6. ■■■ 米国のエイズ感染者数は2000万人以上 ■
  7. ●▲■語彙は力なり その22◆▲● 
  8. ●▲■未だにＧショッカー＠頑張る■▲● 

At first I thought the only combination being used was ●▲■, but as you can see
in the examples there are different combinations like ●■▲ and ■▲●, so I guess
the order is of the shapes matter. In cases like ex 5 the ★ and ●▲■ appear to
be used as brackets and the order of ●▲■ is not reversed. In other cases it's
reversed like in 8. In ex 2 and 3 they don't appear to be used as brackets.

Is there any special meaning of using this characters in different
combinations? (mostly in thread titles in 2ch?
CC BY-SA 4.0
2019-08-01T04:43:18.003
69814
2019-08-01T05:52:21.610
17515
question
meaning symbols
Usage of ★●■▲◆▼ shapes in different combinations
They are just meaningless decorations used to make the title stand out.
Colorful emoji was not available in 2ch yet, so they used triangles, circles,
stars and squares instead.
CC BY-SA 4.0
2019-08-01T05:52:21.610
69817
2019-08-01T05:52:21.610
5010
69814
answer