Low　user　participation　and　less　knowledge　contribution　seriously　threaten　the　sustainability　of　online　question　and　answers　communities.　Although　researchers　studied　the　different　aspects　of　knowledge　contribution　and　proposed　useful　suggestions,　there　is　still　no　thorough　study　on　the　knowledge　contribution　pattern　of　consistent　geeks＇　that　can　help　improve　low　participation.　According　to　social　cognitive　and　self-determination　theory,　peers　follow　credible　sources　or　role　models　in　their　participation　patterns　and　are　influenced　by　the　community　environment.　Based　on　social　cognitive　and　self-determination　theory,　we　have　studied　the　most　consistent　geeks　of　StackOverflow　for　the　period　between　2010-2020　to　employ　the　results　to　activate　dormant　users.　Two-step　system　GMM　results　revealed　that　most　users　take　a　free　ride　and　hesitate　to　reciprocate;　knowledge-seeking　negatively　influences　the　quantity　of　contributed　knowledge.　Peer　recognition　and　repudiation　positively　influence　the　knowledge　contribution　of　active　geeks,　whereas　reputation　scores　and　badges　negatively　influence　the　contributed　knowledge＇s　quantity　and　quality.　Social　interaction＇s　role　as　moderator　is　also　different　for　quantity　and　quality　of　knowledge　contributed.　Study　results　improve　the　existing　literature　and　provide　comprehensive　managerial　implications　to　improve　low　participation　and　create　a　progressive　knowledge　contribution　environment.