https://www.duolingo.com/antonmo

please add a spam delay

I’m tired of daxiv spam filling my mailbox

could you not disallow users to post to numerous threads all at once

October 31, 2018

10 Comments


https://www.duolingo.com/Thomas.Heiss

I have already written a longer e-mail to Duolingo support with several suggestions on Monday, 10/29/2018 16:48 o' clock in reference to bug report 1149105.

But without all those features implemented, the robot has an easy game for the next days/weeks as the Duolingo new user register / verify / "intro placement" process is way too easy to pass...

......obviously there are not ANY additional protections (flooding, IP concurrent request checks, daily thread/comment hard limits, "are you a robot pic challenges", etc.) to hinder a newly registered user from the same day or (or even 25 minutes ago) to start writing/spamming in all / multiple threads...

October 31, 2018

https://www.duolingo.com/antonmo

thank you. how do I see report #1149105

October 31, 2018

https://www.duolingo.com/dogomolo

I think they are hidden from users

October 31, 2018

https://www.duolingo.com/E2.m2c4.p2c2

Thanks!

I second this. Some additional things that would be good:

  • if they are getting negative scores - only allow them to post once per X hours or disable posting until a mod approves.

  • If they are a new user - limit the # of posts by default.

  • Have a "report" button on comments that can alert mods and/or slow down a user's posting if it's bot like or not appropriate.

  • have an "off topic" button that replaces whatever the comment had with "[removed]" if there are sufficient complaints. Sometimes even real users will make many comments and it makes it difficult to follow a serious thread.

November 1, 2018

https://www.duolingo.com/merkavar

What sort of delay do you mean? Like 30sec between posts?

10 mins?

A time limit that decreases over 3 months from 10mins to 30 seconds between posts so it’s less of an inconvenience for long term users?

November 1, 2018

https://www.duolingo.com/antonmo

anything really so I don’t get 30 e-mails all at once

November 1, 2018

https://www.duolingo.com/merkavar

People keep thinking these are bots, but in the posts I have seen, the first part of the post seems to be a genuine response to the thread, then the 2nd part is the spam/links.

Seems odd to me that a person appears to be doing it rather than a bot.

November 1, 2018

https://www.duolingo.com/Swisidniak

Rather than genuine responses it is actually just copy-pasting other comments (Actual genuine responses) from the discussion at random and then tacking on their links. The first few times I thought they were responses and then realized I've read them before. I'd go to the link and surely enough someone else posted the exact same thing over a month ago. A few times it's been my own comments that it steals.

I tried to look for a pattern in how it decides what to copy but couldn't find one. Sometimes it's the top voted comment, sometimes it's a reply to a long chain of comments, sometimes it's just a couple words with no upvotes at the bottom of the page.

November 1, 2018

https://www.duolingo.com/merkavar

Good catch, I just saw them in my emails, so they looked real.

November 1, 2018

https://www.duolingo.com/antonmo

I’ve noticed it too. but it’s probably artificial intelligence. there are ways other than real responses e.g. you could google and paste the response from other sources and still be relevant.

a real person or even a group of people are easily blocked. you can just block their ips. a botnet connects with a new ip each time.

November 1, 2018
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