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1. What's up with that? Looks like testing bots, because most of the messages don't make sense at all.

2. They should mitigate these bots, because ultimately it will make the website annoying to visit.

Looks like oldschool SEO farming by stuffing a bunch of reference links to their site all over the internet so the robots think that tons of people are linking to your site. Don't think it works as well anymore but still a common tactic.

I don't think they're testing bots; many seem to be linking to external sites or advertising something.

Maybe SRE related spam?

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