Is this normal?

About one third of the edit review queue is filled by this user and similar, and their contribution to the post typically is literally two or three changed characters. Often, the change is harmful: one post was changing from "sda" to "SDA" (in Linux disks context, where lowercase clearly makes more sense) and "1TB" to "1 TB", and that all what was changed, folks.

Another example.

Another account with the same behavior.

I don't hesitate to reject their edits with "no improvement" or even "does harm", but what they are trying to achieve? No questions, no answers, but an "editor" badge, seems to be just building a reputation, for what? It's suspicious...

Is this normal?

About one third of the edit review queue is filled by this user and similar, and their contribution to the post typically is literally two or three changed characters. Often, the change is harmful: one post was changing from "sda" to "SDA" (in Linux disks context, where lowercase clearly makes more sense) and "1TB" to "1 TB", and that all what was changed, folks.

Another example.

Another account with the same behavior. An example of their contribution: I've changed to I have and wasn't to was not.

I don't hesitate to reject their edits with "no improvement" or even "does harm", but what they are trying to achieve? No questions, no answers, but an "editor" badge, seems to be just building a reputation, for what? It's suspicious...

Is this normal?

About one third of the edit review queue is filled by this user and similar, and their contribution to the post typically is literally two or three changed characters. Often, the change is harmful: one post was changing from "sda" to "SDA" (in Linux disks context, where lowercase clearly makes more sense) and "1TB" to "1 TB", and that all what was changed, folks.

Another example.

I don't hesitate to reject their edits with "no improvement" or even "does harm", but what they are trying to achieve? No questions, no answers, but an "editor" badge, seems to be just building a reputation, for what? It's suspicious...

Is this normal?

About one third of the edit review queue is filled by this user and similar, and their contribution to the post typically is literally two or three changed characters. Often, the change is harmful: one post was changing from "sda" to "SDA" (in Linux disks context, where lowercase clearly makes more sense) and "1TB" to "1 TB", and that all what was changed, folks.

Another example.

Another account with the same behavior.

I don't hesitate to reject their edits with "no improvement" or even "does harm", but what they are trying to achieve? No questions, no answers, but an "editor" badge, seems to be just building a reputation, for what? It's suspicious...