For many of these sales orgs "remove me from your list" just means "flag my entry so that they'll endeavor to find the flimsiest excuse to call you again." DataDog's justification for "call me again after I told them to never call me again" was that an employee had made the mistake of giving them his information at a conference and was interested in using them for a personal project. So that justified them contacting me even after I told them to remove me from their list.
DataDog has the absolute pushiest sales folks I've ever dealt with.
I used to get daily calls from them and I'd tell them that we already had another monitoring solution and that they'll need to send me written material to present to my team if we were going to switch. They would always say sure, never do it and then call me again the next day.
For many of these sales orgs "remove me from your list" just means "flag my entry so that they'll endeavor to find the flimsiest excuse to call you again." DataDog's justification for "call me again after I told them to never call me again" was that an employee had made the mistake of giving them his information at a conference and was interested in using them for a personal project. So that justified them contacting me even after I told them to remove me from their list.