I don't think gear sharing in itself is the issue. The issue is that it happens too often, pretty much always with the very same basic "trick", pretty much always to the same jobs (and many of the base designs have also gotten quite old, long ago, cue long caster robes). One of those signs that say "slow down with gear progression already" - as obviously the fact that we "have" to get new gear so often contributes to this phenomenon.
