Yes,
just like a wrongly translated "the world is a cube" wouldn't really change our planet.

I did the translation update, but I realized that it does not differentiate our post with posts we commented on in this notification.

Am I right?

I checked the sources - and in fact the Portuguese translation is misleading:

In https://github.com/opensource-socialnetwork/opensource-socialnetwork/blob/v5.x/components/OssnNotifications/locale/ the original English notification reads:

commented on the post.

while the Portuguese translation gives

commented on your post

which makes a subtile but important difference

So simply turn off Ossn cache, and correct that wrong translation.

All members receive notification ... but baby blue and I receive notification "commented on your post"

I receive the notification:
Baby blue commented on your post

And baby blue receives:
Filipe Medeiros commented on your post

OSSN 5.2

Okay, only trying to clearify ...

1. Rita Red makes a post
2. Filipe Meideiros comments the post of Rita Red
3. Baby Blue comments the post of Rita Red

Questions:

1. Which member(s) receive(s) a notification?
2. What is the content of the notification(?)
3. Provide <version> and <release> from your opensource-socialnetwork.xml file