imo, I would rather people put their effort behind making new threads(even if low effort spam) and leave bumping to those who have some idea of the damages necroing can do.
There's far more positive effect from creating a thread than necroing an old one.
As an angle for making new threads consider this.
Every thread you make should be part of a strategy in your head.
Threads attract people and people shape the board,
If you want nice people make nice threads and if you want malicious people make malicious threads.