It wasn't about the doll.
I was thinking about Tank Grunt's secrets in TS2 on PSP;
When Ripp took the doll from him, knowing that Buzz has 0 interest points in toys, and it being a doll, I imagine Tank must've been too afraid to ask his father to tell Ripp to give her back to him...
The doll was only one of the ways in which Tank tried to be in tune with his feminine side, all of which were either taken away from him or turned into a negative association
Him wanting to go into ballet but being forced to follow his father's footsteps is another example, and I personally find it lovely to see that in contrast to this, in TS2 on DS and on GBA he wears the pink shirt 🩷
And then there's the face paint...
Note that in TS2 on DS we find out from Tank that his face paint apparently is tattooed on and doesn't come off... I could be wrong but was THAT the punishment?
Think about how his face paint looks identical in TS2 on PC, PSP, DS as well as GBA and even in TS4 he appears with his family, where we can see that his father no longer has the lines on his cheeks, but Tank ... still has the face paint U.U
Honorable mention: in TS2 on GBA one of our first interactions with Tank is regarding him thinking that we are going to judge his apparel, presumably the pink shirt mentioned above, and this makes me wonder if his father's 0 interest points in fashion as well maybe made him view fashion (let alone the color pink) as something 'too feminine'...
...especially considering Tank has all the same interest points as his father
Buzz never allowed Tank to express himself