Summary:
Some blocks can be placed on top of Pointed Dripstone. This goes for both on top of the pointed dripstones and attached to the sides of them. Neither should be doable.
Affected blocks:
Item Frame
Painting
Banner
Sign
Cake (MC-121112)
Expected results
These types of blocks should not be placeable on top of pointed dripstone. So the Bedrock behavior is correct in this place.
Linked issues
is duplicated by
Attachments
Comments
Can confirm in 21w05a.
Well ok) 👍
Can confirm in 21w06a.
Can confirm in 21w07a.
In my opinion; floor item frames, banners, cakes, signs and torches should be placeable on dripstone and dripstone should change to "tip_merge" state when these blocks are placed on it.
@unknown
Excluded) Then they have to do it on the bedrock version. 🙂
Can confirm in 21w08b.
Attention.
The ability to set the blocks indicated in the report has been added in the bedrock since version 1.16.220.50 MCPE-116056. The parity issue has been resolved (this report was generated due to parity with bedrock).
Can confirm in 21w11a.
Can confirm in 21w14a.
Why this isn't closed yet? These blocks can now be placed on Bedrock Edition.
Can confirm in 21w17a.
Can confirm in 1.17.
Can confirm in 1.17.1.

Cake is already tracked in MC-121112.
Can confirm in 1.18.
Can confirm in 1.18.1.
Can confirm in 1.18.2.
Can confirm in 1.19.
Can confirm in 1.19.2.
As a note; (currently at least) item frames can be placed on next to anything. Them being placeable on dripstone is closer to expected behavior than not.
(After searching for a bit, I was unable to find any issues for this behavior)
Can confirm. I'd just like to add on that this affects on sizes of pointed dripstone, (base, frustum, middle, tip and tip_merge).