If you are just going to dive to the end of a thread 12 pages deep, don't be surprised if you find glib remarks lacking ALL context. Especially when the remark is made by the OP of the very same thread.
In this case the comment was made to suggest a lack of trust. If you can't trust a developer to be honest / mature / responsible in one area , how can you trust them to be in others.
Trust is very very important in all open source projects as believe it or not, the published sources don't have to have anything to do with the published binary, and while it might seem logical to assume code + compiler = identical_results it's much more complicated than that. The reality being that unless you are inspecting the source by hand and then compiling it yourself, the developers word is all you have.