It has been 5 years since the great consensus cleanup softfork was proposed. The majority of bitcoiners have joined after that and are likely unfamiliar with it or the some of the dramatic things that could occur without these fixes. https://bitcoinops.org/en/topics/consensus-cleanup-soft-fork/

Did you know all the remaining bitcoin could be mined within 3 weeks? If not, have a look here https://bitcoinops.org/en/newsletters/2019/03/05/#fix-the-time-warp-attack

Did you know a malicious user could create a special set of transactions that if included in a block could be so computationally expensive that it would crash many nodes on the network possibly resulting in a fork? If not, have a look here https://bitcoinops.org/en/newsletters/2019/03/05/#prevent-use-of-op-codeseparator-and-findanddelete-in-legacy-transactions

Did you know a malicious user could create a transaction of size 64 bytes and pull off a theft from many users? If not, have a look here https://bitcoinops.org/en/newsletters/2019/03/05/#forbid-transactions-64-bytes-or-smaller and here https://bitcoinops.org/en/newsletters/2019/03/05/#forbid-transactions-64-bytes-or-smaller

Did you know Bitcoin Core has the notion of standardness rules which (gasp!) filters out certain transactions? If not, have a look here https://gist.github.com/instagibbs/ee32be0126ec132213205b25b80fb3e8 and here https://bitcoinops.org/en/blog/waiting-for-confirmation/

Did you know there has been an increase in the number of non-standard transactions included in blocks recently. If not, have a look here https://b10c.me/observations/09-non-standard-transactions/

Did you know there is an increase in the number of commercial services and mining pools that are willing to include non-standard transactions? If not, have a look here https://ir.mara.com/news-events/press-releases/detail/1343/marathon-digital-holdings-launches-slipstream

It is a good time to revisit it and discuss. Maybe this is the next consensus rules change instead of OP_CAT?