Is Search automatic rewards safe?

Search automatic rewards opens hidden background tabs that run automated Bing searches to farm Microsoft Rewards points daily.

The extension's service worker schedules randomized alarms and, up to once per day, opens background tabs that issue Bing searches built from a built-in word list (or random strings) using jittered timing. It also opens rewards.bing.com in a background tab and messages its content script to auto-click the daily-set reward cards. No browsing data is sent to any external server; all activity targets Microsoft's Bing and Rewards sites to accumulate points automatically.