2

One of my questions has just been bumped onto the front page by the Community bot:

modified

But the revision histories of the question and its sole answer (no deleted answers) show no activity since several weeks ago.

What modification was made by the Community bot?

6

Community bot bumps old posts with low views and no accepted answers occasionally.

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It doesn't change anything, it just wants to help you get more attention.

3

Every so often the Community user will bump old questions. Quoting from its user profile:

I do things like […] Randomly poke old unanswered questions every hour so they get some attention

The only “modification” this involves is to change the last modified time in the database, and attribute an empty edit to the user. It doesn’t make any substantive edits to these posts.

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