Do native English speakers ever say "at the weekend" rather than "on the weekend" ? I have seen enough students use it to make me think they were taught this. However in my region it would be understood but sound awkward.

Should the answer section have the "best answer" as an option?

In viewing many discussions I have noticed that the person with the question often chooses as the "best answer" an answer that is actually quite poor. Sometimes there are some much better answers from lucid teachers that were ignored for this.

As a language learner I would seldom know who was giving me the best answer. I may know that the person has explained it best in a manner I understand. However, that does not mean it is the correct answer.

I also noticed that sometimes the "best answer" designation is attached to a non-native who is simply wrong or to narrowly focussed.

"best answer" never means anything from the person who is learning.

I vote for eliminating "best answer".  How about you?

Teachers with bad videos

Everybody cares about the hours and costs of the tutors. I also am concerned about hearing them clearly.

A lot of the introductory videos have sound problems. Sometimes it is a bad echo, sometimes the teacher seems to have a soft voice, or does not have clear annunciation in my target language or speak very quickly. Sometimes they play a background musical track - does this mean they leave the radio on during lessons? Sometimes there is a lot of background noise like a cafe or a street.  I try the tutors that have clear voices with no sound problems.

Does anyone feel the same way?