This is the 15328th most frequent Turkish word.
söyleyenler
"Those who say" or "those who speak."
The word 'söyleyenler' refers to people who have said or spoken the misinformation in this context.
Bu konuda yanlış bilgiler verenler söyleyenler olmuş.
There have been people spreading misinformation about this topic.
Here, 'söyleyenler' is used to denote those mentioning or stating the idea.
Toplantıda bu fikri destekleyenler söyleyenler ile tartıştı.
In the meeting, supporters of the idea debated with those who voiced it.
In this sentence, 'söyleyenler' is used generically to refer to people who were speaking or expressing opinions.