The #voterfraud website Q linked to has a chart titled "Usage of #VoterFraud hashtag in 2018".

https://www.iwr.ai/voterfraud/index.html

Looking at some of these spikes it is not difficult to explain why voter fraud would keep cropping up. People see things in the news that concern them and share their concerns online.

May 14th 2018

Texas AG Continues Crusade Against Voter Fraud

https://www.courthousenews.com/texas-ag-continues-crusade-against-voter-fraud/

June 13th 2018

Texas Woman Sentenced to 5 Years in Prison for Voter Fraud Loses Bid for New Trial

https://www.nytimes.com/2018/06/13/us/texas-woman-voter-fraud.html

July 17th 2018

Top Voting Machine Vendor Admits It Installed Remote-Access Software on Systems Sold to States

https://motherboard.vice.com/en_us/article/mb4ezy/top-voting-machine-vendor-admits-it-installed-remote-access-software-on-systems-sold-to-states

August 13th 2018

Wake County man sentenced for illegally voting in U.S. elections

https://abc11.com/politics/wake-county-man-sentenced-for-illegally-voting-in-us-elections/3949746/

August 24th 2018

19 foreign nationals charged for voting in 2016 elections

https://www.politico.com/story/2018/08/24/voter-fraud-2016-foreign-nationals-charged-795704