Considering that "free helicopter rides" is a well-known "euphemism"/"joke" made by alt-right circles in executing their political opponents (presumably leftists) as a reference to practices made by Pinochet - Source Source, and noting that this above reply was made to a user who was looking for "A fellow Marxist" with Marx in their signature, this seems very inflammatory - Context
The user also noted "if you know my meaning", meaning that they are quite aware of its potential implications.
