I would agree moderator comments/explanation should be necessary if a post is delete by a mod. This was not done for my post, and my post was only a question to the poster if he had contacted XP about his issues--my post didn't break any rules/policies.
ExPo needs advertisers yes, but I don't feel that "protecting" advertisers from honest and valid poor experiences from the advertiser's customer base is warranted--positive experiences certainly aren't deleted, why should frustrations be? This is a public forum where information can be shared, in a respectful way. Sure, if it's proven that the post is from a competitor using an alias, that's a different topic. But when someone is asking how X product is, and admist positive comments, a customer here or there responds with their frustrating experience, that experience should be known even for the company to help improve its product or services. No person nor company is perfect, things happen, hopefully the company makes it right. As a business owner myself, in our 17yrs we've let clients down from time to time, and if someone posts about it, we're quick to respond, apologize, and ask for the opportunity to make it right. And from what we've been told by potential new clients who see that interaction, they appreciate that we're responsive, engaged, and take care of things if needed---not that we pretend to be flawless and walk on air. That's simply unrealistic.