I would be more insulted if the comment said that we had no common sense. That being said an Albert Einstein quote comes to mind “common sense is the collection of prejudices acquired by the age of eighteen”. The one thing that this community does not have is prejudices, this is a very welcoming community with members from all walks of life.
I agree it could have been better worded especially when the context of the English language can be taken the wrong way in the absence of tone. I think what David was really meaning to say was to be a bit more sensitive in the introduction posts e.g. get to know those joining the community first before encouraging sharing recordings as some may find it a bit overwhelming due to their personal circumstances. Looking back at my introductory post there was no mention of sharing a recording back then so either it is a kind of new thing to say in an introductory post or nobody wanted to hear me play.
I completely agree with @Kasper. I think he words it very well. This is something that I would have started doing earlier in the learning process if someone had said that to me in my introductory post. A fantastic bit of advice to a new learner from someone at such a professional level of playing.
I completely agree with @LievenDV as the suggestions/recommendations to post recordings are done in an enthusiastic friendly manner and in most cases where the OP is looking for help to progress or overcome issues they are experiencing. The key words “when you feel ready” are used in most instances as the members of the community understand how daunting it can be to post your first recording.
I think the below response to a question raised that inspired me to do an AVOYP is a good testament to this community especially the last sentence.