Thank you for bringing this up. Most people are yet to see the truth behind these projects waking up from their great slumber. I think if a project should go mute over a length of time only to wake up when the market is favourable, such project should be stayed away from because they have nothing to offer.
In fairness, there might be some exceptions since still there might be some sound projects who had been much affected by the recent crypto-winter and had been less active during those days but had gone more active these recent days but I guess we have to be more cautious especially for those projects which up to now don't have any Github activity or at least a beta version of the product to show to the community.