I just transferred about 1 BTC to a wallet and the fee was something like 20 cents. Is that right? I recall having fees of $25 back in December for the same amount. I'm using Segwit by the way.
There were spam attacks on Bitcoin and increased number of transactions during Nov-Jan ATH spikes. Combining both events fees went crazy. Right now are back to normal. We will see what will neer future bring. if it will stay like this that is perfect.
Any legitimate sources for this? AFAIK those massive spikes in fees are caused by numerous people wanting to get their coins sent from A to B and some traders trying to arbitrage because of the large spreads in between exchanges. Though that doesn't seem to account for all of the transaction, still I cannot remember any talks about spam attacks during the ATH run since everybody is eyeing on gains and not the problems bitcoin is facing (and partly, if the spam attacks were real, the party/ies who did it somehow lost in their agenda.)
It was full of dust/unspendable transactions, moving few K satoshi with 200-300K fees. I think that was around the alleged Ver's attempt to made people switch from BTC to BCC. Somebody calculated that those transactions cost the attacker nearly $5M/day. But those $5M/day are nothing, compared to the money somebody made from BCH pump and dump. If I find some free time to dig around, I will look for few TX examples from this period.
There was spam attack whole last year. But when number of transactions increased because of hype it become serious and fees were even $50.
Yes most likely behind spam attacks were those that wanted bigger blocks.
But fact of the matter is that it doesn't scale and that LN sucks so it's a great idea but just won't work for mass usage. 
