All the links to the older domain were already removed or converted to a safe/unclickable format in case there was some historical relevance. The post referenced by you was kept while we were trying to get relisted at BestChange (https://www.bestchange.com/exch-exchanger.html) so the amount of posts containing the old domain was somehow important, however since BestChange has refused to relist our service even that we proved the relation between the old and new domains because they wanted to identify and KYC people behind eXch along with requiring nonsensical measures such as making a video conference with their "security team" via Skype and asking for our ID copies to be uploaded through some image uploaders full of JS bloatware, which was impossible to do due to our internal opsec protocols that help us to keep our identities private, we have dropped the idea to get relisted there, therefore those posts will now be removed.