Faithful readers of SCP, do correct my mistakes if any, as I am but a new reader.
To first understand this SCP article, you should know the entities' origin. These creatures are refugees from a certain war, and now have deserted our reality and seek shelter in this anomalous forest. As a price, those forest dwellers are stripped bare of their name. A name is needed for them to return to our reality. A name is how you adress something, possibly more than twice. The nameless ones have no ability to give a name, however, these anomalous neighbors of ours can be quite crafty in order to steal one, so beware.
There are ways to interact with the SCP in question. One, do not address anything affiliated to the anomalous woods using the same words repeatedly. Two, do not heed or react when being addressed with a name by these name-stealers. Three, basic mannerism.
One particular interview log tells about a particular doctor and his interviewee. The interviewer and his conversation partner were often to meet beforehand as a way for the foundation to further study the anomaly of this mysterious forest, and these two were friendly with each other after all the talk happened. At one time, the anomalous individual addressed the the poor doctor and himself as fellow scholarship, and was inadvertently replied. With just that, it managed to steal the poor guy's name and his whole existence, taking over the body, then walked out of containment.
That's the log the commentators are talking about.