H
Play Inactivity

Yeah, it happened to me at a lower rating too as people who don't really care about improving just leave the game without resigning. It stops being an issue around ~1200 rating because people are generally more understanding at that rating and resign instead of just leaving. It just comes down to respect.
I often play games when I make a move, that puts a player in a tough position, but then they randomly disconnect instead of making a move or playing causing the game to be abandon? And now I'm in a game where I used the Englund gambit and pinned the queen with my bishop, since then for 8 minutes the player has only made one move - hasn't even disconnected and won on time
Here is the game:
https://www.chess.com/analysis/game/live/58883958993?tab=review