to be fair the spam attack started at least 2 years ago and only had some breaks in the middle to rest and gather all the small transactions in one address to start spending (spamming) again.
this spam attack seems to be working...i have had a couple of transactions fall off and viabtc.com/tools/txaccelerator/ keeps notifying me that transaction does not exist
there are two possibilities that i can think of without seeing your transaction
1. your transaction did not reach viabtc when you used them which means you should have waited a little like 30 seconds!
2. your transaction was rejected by viabtc node so they say it doesn't exist. (i have experienced them rejecting my secondary RBF tx with higher fee)
Just out of curiosity with such huge backlogs why dont we have more mining pools created to help alleviate this tx problem we facing
that is not how mining works. even with more mining power there still would be the same blocks being mined within the same time frame.