It is probable that these instances follow in the footsteps of Reddit- the cycle repeats.
I don't think this is completely the case. Some instances will suffer from overzealous mods and admins, others will suffer because of absent ones, others will have too strict or too lax rules. That's unavoidable in any large number of communities. But Reddit is preparing and doing something that the vast majority of Lemmy instances will never do, Reddit is trying to prepare for an IPO and to have to show growth to shareholders on top of advertisers.
If that is something that could be done by a Lemmy instance, if that is botched it would be even easier for Lemmy users to jump ship to other instsnces and potentially defederate from the IPO instance.