785 new users in the past month? €815 transferred last week? If their total throughput is under $5000/month they have some growing to do before becoming much of a Patreon alternative.
They also seem to have their own opinions about things that should be best left to users.
Similarly, having a (relatively low) limit on maximum donations I imagine is done to avoid running into anti-money laundering regulations (which are particularly strict in France).