When making friends my motto is quality over quantity. And over the years I have met a few quality people on this site and in other areas of life. The next difficult part of friendship is duration and keeping hold of friends through all the different directions life pulls you in, but the internet can help with that. Just takes some extra time and effort.
Sorry but that expression "quality over quantity" sounds like an excuse to not engage others in some sort of relationship. Sure, some people have behaviors that are annoying...or are a real drain in your psyche...but that doesn't mean that they don't have value.
Everyone has value and worth... everyone has some unique talent and abilities...it's just a matter of finding out. Some people are usually very secretive about their talents...
I can remember quite clearly a friend of mine whose wife never sang. Her husband did and loved barbershop quartet style singing...I liked listening to him and his buds...I can't carry a tune unless it's handing out hymnals.
But then one day I was watching our choir do a Christmas special...there she was on stage and I wondered what she was doing up there. Then she started this solo that blew me away. She was a complete star... beautiful voice and talent. Clear notes with no vibrato and nailed every note. I was totally impressed. My friend had always blown off her singing ability talking about his quartets.
Some guys have cake baking skills or skills way beyond the norm for barbeque and grilling...others can weld and make wrought iron art. Some can sew or something... you don't know until you get to know them. It doesn't mean that you need them as a best buddy... or that their intentions are always the best...but it takes EVERYONE to make a congregation...and utilizing everyone's talents is a key principle of living a rich life.