i hope you can hire someone to make the notifications compacted in a single line for each thread/subject.
Person 1, Person 2, Person 3 and 3 others Posted on Thread X
instead of
Person 1 Posted on Thread X
Person 2 Posted on Thread X
Person 3 Posted on Thread X
Person 4 Posted on Thread X
Person 5 Posted on Thread X
Person 6 Posted on Thread X