Unreliable.
These marriage seeking groups are as numerous as a blind date group, but there are very few that can actually be recruited, less than one in tens of thousands. At the beginning, everyone joined the group with good wishes, especially women, who always wanted to find an ideal partner in the group, but in the end they all left disappointed.
There are many marriage seeking groups on the Internet, because it is easy to set up a group and does not cost anything. Some group owners regard this as a way to get rich, and they require you to pay money to join the group, so don't be fooled.