If you are fighting gunfighter to gunfighter, especially in a 1vs1 duel - dragging an enemy fighter into a climb where they stall out before you is a viable and very fun tactic.
You can do this if there’s only gunfighters around as by the time you’d get third partied (effective range 400-600 meters), you have finished executing your maneuver.
If there’s missiles around, even 9Bs, they kind of shut down a lot of vertical dogfighting techniques.
They also make flying higher than ground level painful. You got no RWR and cannot look below you. Gunfighters may still sneak up on you from below, but effective ranges of 400-600m persist and we’re talking sim - a lot of people prefer even shorter ranges (although korean jet nose mounted guns help).
Meanwhile 9Bs and red tops can snipe you from a good 2km away.
Edit:
Also
What 9.3 aircraft have flares? Looking at the 9.0/9.3 fighters of USSR/germany/UK/US/Italy/france I cannot see anything that has flares. No for mig17 variants/imitations, no for f86 variants/imitations, no for f3h, no for yak38, no for alpha jet, no for hunter,
Only cases I found flares is strike craft like A32 and bombers like buccaneer.