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Many Amazon employees felt uncomfortable following a series of recent defacements on LGBT "Pride" posters hanging in the company's elevators. Amazon's response to the incident infuriated some even more. Approximately 10 employee-designed posters that were designed to encourage inclusivity were defaced in Amazon elevators at its main headquarters over the past two months, according to internal emails seen by CNBC. Examples included crossing out the "T" in "LGBT" or writing "Why?" over the message. Amazon replaced the defaced posters and put up a new message that reiterates the company's policy on vandalism: "Posters are company property. Defacing posters is a violation of Amazon's policy."

The incident has sparked a debate inside the company on whether Amazon's response was adequate, drawing over 100 responses in an internal email thread last week. Some employees voiced their displeasure over the company's failure to address the problem and promote workplace inclusivity, making some employees with LGBT backgrounds feel further marginalized at work. "The proper response to widespread pride poster defacement is not only a policy that prohibits defacement, but also a massive and overwhelming show of support for pride in many forms," one of the emails said. In a statement, Amazon confirmed the incident and reiterated its commitment to equal rights and tolerance. "Amazon allows employees to create their own posters to advertise events across our campus. When we learned a few posters celebrating Pride were defaced, we worked quickly with the employees who created them to have them replaced, and we published new posters to reiterate our policy that posters shouldn't be altered. Since then, no other incidents have been reported."

'Corporate-borg' language

The emails viewed by CNBC give a rare display of employee dissent over company policy at Amazon, whose workforce is generally known to be less vocal over such issues compared to those of other tech giants, like Facebook and Google. It's also the latest diversity issue to surface at Amazon, as it continues to work towards building a more inclusive culture. The biggest complaint comes from the lack of engagement and support for the LGBT community in Amazon's response, the emails show. "It's authoritarian and un-Amazonian," one person said about the poster warning employees not to deface company property. "That poster is the most corporate-borg thing I have seen in my almost 7 years with the company." Another person who identifies as transgender said the incident has had real impact on how LGBT employees view Amazon as a workplace, and that it made that person reconsider a move to the company's Seattle office. "I know people personally who came very close to quitting Amazon as a consequence of those defacements," this person said. Some employees expressed concern over their safety at work, as Amazon's response leaves room for the perpetrators to repeat their attacks in other ways. For people with LGBT backgrounds, safety at work is "not guaranteed," this person said. "This policy won't actually do anything to address the goal of stopping bigoted comments related to the poster," another person said.

Amazon's lackluster response could have broader implications as it fails to "set the tone for what is accepted and not accepted" at the workplace, according to Stephanie Creary, a management professor at the University of Pennsylvania. She said a more inclusive approach would have been a company-wide memo condemning the act and reaffirming the company's commitment to creating a diverse office culture. "When companies fail to call out biased behavior against members of LGBT communities, they can actually further perpetuate the marginalization of these communities," she said. In a statement, Amazon's spokesperson said the company is "proud" of its inclusive culture and pointed out that it received a perfect score on last year's Human Rights Campaign's Equality Index. "Amazon has always been, and always will be, committed to equal rights, tolerance and diversity," the spokesperson said.

'Committed to equality'