Yes, it is called a search index. You need to completely rebuild it to fully remove indexed conversation data, this is a limitation of XenForo's search if you want to be compatible with Elastic Search or MySQL fulltext search.
And frankly, the overheads this add-on adds is nothing more but "more stuff indexed". If that throws your site over the edge, it was living halfway over anyway.
You can use my Elastic Search Essentials to reduce the impact on search results, but this requires elastic search and the trade off is a vastly more complex search query.
And frankly, the overheads this add-on adds is nothing more but "more stuff indexed". If that throws your site over the edge, it was living halfway over anyway.
You can use my Elastic Search Essentials to reduce the impact on search results, but this requires elastic search and the trade off is a vastly more complex search query.