> I think I've heard of churches charging nominal fees for church membership, but not requiring tithingRequiring tithing is not particularly common, but I'm also not surprised when I hear of churches where it happens. A lot of this probably depends on your tradition and geography. Requiring tithing is entirely unheard of in the mainline and very uncommon in the northeast generally, for example, but seems to be slightly more common among the particularly "charismatic"/"corporate"-style evangelical churches in the suburban and exurban midwest.
In any case, I think social pressure on members to tithe is MUCH more common than formal requirements. This might be the source of virulent disagreement. Just because there isn't a formal requirement doesn't mean that there isn't intense social pressure that creates a de facto requirement.
IMO both sides of this argument are correct -- formal tithing requirements are rare, but de facto requirements for members to tithe, enforced via social pressure, is probably quite a bit more common than folks who depend on that tithing for their salaries are willing to admit/realize.
> the only church...
The following rant is specific to the USA.
This irritates me beyond words. Christian churches avoid BILLIONS in taxes via laws such as the Parsonage Exemption, whose original de jure justification was "to spread the gospel" -- about as clear a violation of 1A as you can get (to say nothing of the role that "spreading the gospel" played in the cultural and sometimes actual genocide of native populations).
Judges uphold these incredibly generous tax laws because, they reason, words like "church" and even "gospel" aren't specific to one religion and ought to be interpreted broadly. Excessively broadly, in the case of "gospel". This review does a good job at explaining the case history and legal reasoning: https://lawreview.law.ucdavis.edu/issues/51/3/Articles/51-3_...
Without that reasoning, laws like the one that establishes the parsonage exemption would be prime facie and blatantly unconstitutional. Most churches would lose substantial special tax treatment for many parts of their physical plant and fall into financial hardship.
That's all fine. Really. But don't try to have it both ways. In the USA, either (a) don't insist on using "church" in a religion/tradition-specific specific way, or (b) start paying a lot more taxes.
Anyways, that's all a bit off-topic. The actual point was that I think these folks should accept donations with large nominal "recommended donation" amounts, since I think what they're doing offers way more value than the typical church pastor.