[IanCal]

They might be shunted to a disk somewhere and removed from search indices while on the free plan, reducing their costs but allowing them to recover things after.

> Are the bandwidth costs really that high to justify hiding all those messages (likely on the order of 100k or 1M for many servers) ?

Given that the cost to you is 0, what cost to them is required for it to be justified to you?

It seems odd that providing a free but limited service is evil, based only on it being slightly more expensive to give you an even better service for free.