All current consequences are simply because the system hasn't been fleshed out and perfected enough. It's way too early to judge the approach based on current

All current consequences are simply because the system hasn't been fleshed out and perfected enough. It's way too early to judge the approach based on current implementations, because of flaws in those implementations. But consider a system where the user is always in control of how much resources the web miner is consuming, via say, specific quotas based on domain, content creator, etc., and that there could be little risk for the miner to hijack those resources. This is a technical problem that can be easily solved in future revisions. That said, I'm not sure if mining is the right approach, simply because the proof of work is completely arbitrary for some currencies (e.g. Bitcoin) and has no real value. With content creators it's clear: they provide the value, the content consumers want, and set the cost accordingly, and the consumer simply decides to pay for it. It's simple, and no client side mining would be required. Mining is only necessary to lower the barrier of entry for the consumer, since they wouldn't need to have a digital wallet with existing funds. But in the near future owning a digital wallet will be just as common, if not more, as having a social media account, so this wouldn't be necessary for the long term.