Escrow.com sales volume went down 25% from $24M to $18M. According to Escrow.com, the most traded category in Q4 was 3C .com domains ($6.4M), followed by 4Ls at $4.6M and 3N .com domains at $3.97M, boosted by the record 3N portfolio sale by Rick Schwartz. GGRG Brokerage Consulting and Giuseppe…