Add polls from Kona 2025 SG9 review of P2728R9

paper/P2728.md

@@ -1682,6 +1682,62 @@ These concepts are true when the type in question is the iterator/sentinel of a
 
 # Relevant Polls/Minutes
 
+## SG9 review of P2728R9 on 2025-11-06 during Kona 2025
+
+- [Minutes](https://wiki.edg.com/bin/view/Wg21kona2025/NotesSG9P2728R8)
+
+__POLL:__ We want to remove the null terminator of char arrays (if present) so that `u8"abc" | to_utf32` (and `to_utf8`, `to_utf16`) do not include the null terminator in the resulting output.
+
+|SF|F|N|A|SA|
+|-|-|-|-|-|
+|0|2|2|3|1|
+
+__Attendance__: 10 (2 abstentions)
+
+__Author Position:__ A, F
+
+__Outcome:__ Consensus against
+
+__POLL:__ We want to ban char arrays as input to `to_utfX` to prevent accidental inclusion of the null terminator of a string literal.
+
+|SF|F|N|A|SA|
+|-|-|-|-|-|
+|4|3|1|0|0|
+
+__Attendance__: 10 (2 abstentions)
+
+__Author Position:__ F, SF
+
+__Outcome:__ Strong consensus in favor
+
+__ACTION ITEM:__ Figure out whether we need to cache `begin()`.
+
+__POLL:__ Simplify the `to_utfX_view` classes by just having a single templated view class similar to `scan_view` (with potentially annoying constructor tags to make CTAD work) and focus on usability with the CPOs only.
+
+|SF|F|N|A|SA|
+|-|-|-|-|-|
+|0|7|1|1|0|
+
+__Attendance__: 9 (0 abstentions)
+
+__Author Position:__ N
+
+__Outcome:__ Consensus in favor
+
+__POLL:__ We want to optimize nested `to_utf_view`s.
+
+|SF|F|N|A|SA|
+|-|-|-|-|-|
+|1|4|4|0|0|
+
+__Attendance__: 9 (0 abstentions)
+
+__Author Position:__ N
+
+__Outcome:__ Consensus in favor
+
+__ACTION ITEM:__ Come up with more examples where nested `to_utf_view`s occur in practice to explore whether a designated CPO approach is feasible.
+
 ## Unofficial SG9 review of P2728R7 during Wrocław 2024
 
 SG9 members provided unofficial guidance that the `.success()` member function