I'm not in MAM but the others I'm in have much stricter seeding requirements (like 4 days of seeding in 2 weeks). Like others have said, these rules are there to keep people from creating headaches for the volunteer staff as well as ensuring that you're contributing something too. These sites have a fixed number of users and if everyone else is constantly offline or doing hit and runs, the whole thing falls apart.

If you're not setup to where you have a server running 24/7 or can't get a seedbox, you might use public sources. Since it sounds like you'll primarily be using a phone you probably don't even need high bitrate 4K Remux files with 7.1 audio like you'd get on private trackers. Places like TPB and 1337x have most everything popular. For music, SoulSeek is a great option and doesn't have rules like this.