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salusinarduis | 3 years ago

Some other interesting things I've noticed is counters are often wrong, sometimes even with insane values such as -1. Replies missing from retweet views, missing search results, people have reported that replies sometimes don't work or never appear.

discuss

order

hn92726819|3 years ago

Re: the counter issue; I've had "2" tweets for at least 5 years. I really have 0 tweets, but they mention if you ever delete tweets in bulk, the counter can be off.

They confirm this can happen on their site: https://help.twitter.com/en/using-twitter/missing-tweets

Makes you wonder if anything security related has glitches like this.

ge96|3 years ago

> counters are often wrong,

I heard about "optimistic rendering"

-1 does seem bad. Reddit has fluctuating numbers I thought it was to fight bots or maybe using the eventually correct type db.

pifm_guy|3 years ago

I never really saw how making the counters random helped fight bots.

Anyone who wants to know if their bot armies upvotes are counted can just choose 2000 articles, upvote a random half, then see if the half they upvoted have higher vote tallies than the half they didn't.

No amount of delay, quantizing, or adding noise will defeat that tactic. So why try at all?

JustLurking2022|3 years ago

I would expect it's a database consistency issue across some distributed NoSQL store.

908B64B197|3 years ago

How long until they have a major outage?